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Multi-Point
Gas Alarm System
with Built-in Backup Batteries
UVB-810
Instruction Manual
ＵＶＢ-８１０
Gas Detection Alarm System
Keep this manual for easy reference.
Carefully read this manual prior to use.
This manual covers the standard model. If your unit has end-user-specific
options, this manual will be superseded by your delivery specifications.
Instruction Manual No.
GAE-137-01
December 2021
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Summary of Contents for New Cosmos Electric UVB-810
- Page 1 Multi-Point Gas Alarm System with Built-in Backup Batteries UVB-810 Instruction Manual ＵＶＢ-８１０ Gas Detection Alarm System Keep this manual for easy reference. Carefully read this manual prior to use. This manual covers the standard model. If your unit has end-user-specific options, this manual will be superseded by your delivery specifications.
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Page 2: Table Of Contents
Table of Contents 1. Introduction ..........................1 2. Safety Precautions ........................2 3. Package Contents ........................3 4. System Configuration ........................4 5. Unit Dimensions and Components ....................5 5.1. Gas Alarm System ......................5 5.2. Indicator Unit (V3 series) ....................7 5.3. -
Page 3: Introduction
1. Introduction Thank you for purchasing the New Cosmos UVB-810 multi-point gas alarm system. Prior to use, please read this instruction manual to ensure correct and safe operation and to prevent accidents. This system is a combination of several indicator units and one alarm unit. Each indicator unit is used in connection with a gas detector which is installed on-site, where gas detection is necessary. -
Page 4: Safety Precautions
2. Safety Precautions Carefully read this manual prior to use. To ensure safe operation, follow the precautions given below. Wiring and installation should only be performed by a qualified electrician with appropriate knowledge of wiring/installation procedures. WARNING Ground the product to prevent electric shocks. ... -
Page 5: Package Contents
Dia. 5.2 - 1A 125 VAC 1 per indicator unit Fuse (for backup power unit) Dia. 5.2 - 1A 125 VAC M5x8 mounting screw, for mounting UVB-810 Instruction manual Inspection certificate Optional items (sold separately) Number of Zener barrier detection points... -
Page 6: System Configuration
* External control units may include: signal towers, signal lights, alarm horns, shutdown valve etc. Collective and Dedicated Alarm Contacts The UVB-810 gas alarm system consists of one alarm unit and multiple indicator units. Each indicator unit is connected to an onsite installed gas detector. The system has one collective terminal block and multiple dedicated terminal blocks. -
Page 7: Unit Dimensions And Components
5. Unit Dimensions and Components 5.1. Gas Alarm System Front view Side view Bottom view (Dimensions are in mm) Front view without case cover Figure 2. Gas Alarm System Table. 1 Case type Width A (mm) 3-point 6-point... - Page 8 Item Component Function/Description Alarm unit Activates an alarm in the form of lights and sounds Indicator unit(s) Indicate(s) gas concentrations Backup power unit Shows the backup battery status and battery voltage Backup battery (x 2 pcs) Provide(s) emergency power in the event of a power outage Case cover Protective cover for the energized area to prevent accidental contact Can be opened by releasing its two draw latches...
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Page 9: Indicator Unit (V3 Series)
5.2. Indicator Unit (V3 series) Figure 3. Indicator Unit Item Component Function/Description Gas concentration bar Displays the gas concentration and alarm set values graph display POWER LED (green) Lights up when the indicator unit is on TROUBLE LED (amber) Flashes when a device failure is detected in a connected gas detector or in the indicator unit itself ALARM2 LED (red) Flashes when the gas concentration exceeds the 2... -
Page 10: Alarm Unit (Vas)
5.3. Alarm Unit (VAS) Exposed button type Semi-lock type Full-lock type Covered button type With front cover closed Semi-lock type Full-lock type with front cover opened with front cover opened Figure 4. Alarm Unit Item Component Function/Description POWER LED (green) Lights up when the alarm unit is on TROUBLE LED (amber) Lights up when a device failure in one or more indicator units or in the alarm unit... -
Page 11: Backup Power Unit (Vbh3)
5.4. Backup Power Unit (VBH3) Figure 5. Backup Power Unit Item Component Function/Description POWER LED (green) Lights up when the backup power unit is on, indicating that the batteries are being charged BACKUP LED (red) Flashes when the backup battery is being consumed Batt. -
Page 12: Installation And Wiring
6. Installation and Wiring 6.1. Installation WARNING This product is not explosion-proof and should not be installed in a hazardous area. CAUTION Install this product in a highly visible position in the event of an alarm, where it can be constantly monitored. - Page 13 (4) Firmly tighten all four bolts, and install the removed alarm and indicator units into the case. Install the removed connectors, too. Table 3 CAUTION Length in mm Case type Always remove connectors using plug or connector ends, and not the cable. Broken 3-point wires or poor contacts may result.
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Page 14: Wiring
6.2. Wiring WARNING Prior to wiring, turn off the product to prevent electric shocks. Ground the product to prevent electric shocks. 6.2.1. Wiring and Connection of Gas Detector CAUTION Ensure that the cables are correctly connected between each indicator unit/gas detector pair. - Page 15 DC24V OUT 24 VDC 24 VDC － － － Do not ground ６芯 ３芯 ５芯 5-core 6-core 3-core UVB-810 when シールドケーブル シールドケーブル shielded cable シールドケーブル shielded cable shielded cable the gas detector is grounded. ガス検知部 PA PB PA PB （+） (-) （+）...
- Page 16 ＋ ＋ ＋ 24 VDC 24 VDC 24 VDC DC24V OUT DC24V OUT DC24V OUT － － － Do not ground UVB-810 when the gas detector is grounded. ﾂｪﾅｰﾊﾞﾘｱ Zener Barrier Single Class-A 単独A種接地 earthed ５芯 ２芯 ２芯 5-core 2-core 2-core シールドケーブル...
- Page 17 Dedicated terminal block Dedicated terminal block 個別接続端子台 ＋ ＋ 24 VDC 24 VDC DC24V OUT DC24V OUT － － Do not ground UVB-810 when 3芯 3-core 4芯 4-core the gas detector シールドケーブル shielded cable シールドケーブル shielded cable is grounded. ガス検知部...
- Page 18 24 VDC 24 VDC DC24V OUT DC24V OUT AC100V OUT － － Do not ground ４芯 ６芯 ６芯 4-core 6-core UVB-810 when シールドケーブル シールドケーブル シールドケーブル shielded cable shielded cable the gas detector is grounded. ガス検知部 Ａ Ａ PA PB PR PS Ａ...
- Page 19 Each contact is electrically isolated. The Alarm Reset (AR) and the Alarm Silence (AS) terminals are not relay contacts. Adding a switch between N and AR/AS terminals enables alarm resetting/silencing from an external device. UＶ-810 本体 UVB-810 Collective terminal block 総合接続端子台 Note: When using N.C.
- Page 20 (2) Dedicated alarm contact connection To use the dedicated alarm contacts, connect wires from external devices to the dedicated terminal block. UＶ-810 本体 UVB-810 個別接続端子台 Dedicated terminal block （G) ＋ アナログ出力 Analog Output （H) － ２段目警報１ａ接点 alarm (N.O. dry contact) コモン...
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Page 21: Operation
7. Operation 7.1. Operation procedure IMPORTANT Initial start-up procedure can be extremely dangerous because it uses actual gas (e.g., combustible gas, toxic gas). It is highly recommended that New Cosmos or an authorized representative should be contacted to perform the initial start-up. The accuracy of the checks and adjustments made during this start-up (e.g., zero/span adjustments, operation checks using actual gas) are crucial to ensure the reliability of the gas alarm system. -
Page 22: Operation During Power Outage
(3) Battery check It is possible to check if the backup batteries function normally by pressing the Batt. Check button for 5 seconds. When the batteries are good, the green Batt.Check LED will turn on. The battery level may not be at required level before the initial power-up. About 24 hours is needed to fully charge the batteries. -
Page 23: Maintenance
8. Maintenance 8.1. Routine check and annual/semi-annual inspection Perform routine checks and periodic inspections as given in the table below. Item Frequency Procedure ・ POWER LEDs Check that all the green POWER LEDs (on indicator/alarm/backup power units) are on and steady and that the system operates. ・... -
Page 24: Backup Battery Replacement
8.2. Backup Battery Replacement This product uses two backup batteries. DANGER Do not install the product or the batteries in a confined space or near a fire. Doing so may result in hydrogen gas being generated from the batteries, which could cause a fire or an explosion. - Page 25 Connector 3-point type battery Battery cover Connector Backup battery (x 2 pcs) Power switch 6-point type battery (Toggle switch) Backup battery replacement (2) Powering-off Release the two draw latches to open the case cover. Set the power switch to the off position to turn the gas alarm system off.
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Page 26: Troubleshooting
9. Troubleshooting Before making a repair request, please refer to the table below. If the gas alarm system does not return to normal operation after performing the corresponding steps in the table, or if your issue is not found in the table, consult New Cosmos or its authorized representative. -
Page 27: Specifications
10. Specifications Model UVB-810 Number of detection 3 or 6 points points Detection principle Target gas As per delivery specifications Indication range Alarm set value As per gas detector specifications ・Combustible gas : 25% of alarm set value under identical conditions Alarm accuracy ・Toxic gas: ... -
Page 28: Warranty
11. Warranty The warranty period is one (1) year from the date of purchase. You are entitled to the limited warranty, if the product malfunctions due to a manufacturing defect during normal use in accordance with the instruction manual, specifications and labels. 1. -
Page 29: Glossary
14. Glossary Term Definition Indicator unit (V3) Device which receives signals from a gas detector, indicates a gas concentration, and produces a visual alarm if the target gas concentration reaches the preset alarm value, in the case of oxygen, a concentration above or below a preset limit. Alarm unit (VAS) Device which is used in connection with combinations of an indicator unit and a gas detector to produce audio-visual alarms if a gas concentration higher than the preset... - Page 30 Oct 2018 Initial issue GAE-137-01 Sep 2020 Additional copies of this instruction manual may be purchased. Contact New Cosmos or its authorized representative for ordering. Authorized representative: Manufacturer: NEW COSMOS ELECTRIC CO., LTD. 2-5-4 Mitsuya-naka, Yodogawa-ku, Osaka 532-0036, Japan www.newcosmos-global.com...
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