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ENMET Corporation PO Box 979 Ann Arbor, MI 48106-0979 ISA-300RAL Operation and Maintenance Manual Manual Part Number 80002-043 MCN-437, 08/19/10...
....................25 ECHNICAL ATA AND PECIFICATIONS 7.0 R ....................... 26 EPLACEMENT UMBERS 7.1 ENMET part numbers for sensors and replacement parts: ................26 7.2 ENMET part numbers for Calibration equipment: ..................26 8.0 WARRANTY ............................27 A ..............................28 PPENDIX...
List of Figures 1: F ISA-300RAL E ......................3 IGURE EATURES OF XTERNAL 1A: R ......................3 IGURE EGULATOR AND AMPLE 2: ISA-300RAL I ....................... 4 IGURE NTERIOR EATURES 3: ISA-300RAL M ......................5 IGURE OUNTING IMENSIONS 2A: R ..................... 6...
If you need your shipments insured, please Customer Service. Regarding Shortages If there are any shortages or questions regarding this shipment, please notify ENMET Customer Service within 5 days of receipt at the following address: ENMET Corporation...
A five foot long hose to conduct a sample of the air from the source to the instrument. The hose has a Female quick release fitting and regulator. See Figure 1A. Regulator To connect to the compressed air line. Sample pressure to the ISA-300RAL should be set to 55 . See note Figure 1A.
: Typical facility air line pressures range from about 55 to 125 . The outlet pressure of the regulator supplied with the monitor, which is connected to , ± 5 the inlet of ISA-300RAL the, should be set at 55 Female Quick Release to Inlet Port to ISA-300RAL ¼” NPT...
3.1 Mounting of Instrument The ISA-300RAL should be located near the pipe or tank containing the air to be monitored, and upstream from where the air is being used. The ISA-300RAL must be installed such that it samples the compressed air before it reaches the users.
The instrument may go into alarm briefly, but the sensors stabilize quickly. If the instrument persists in alarm, acknowledge the alarm by pressing the switch. If alarm persists longer than 30 minutes, call ENMET AUDIO DEFEAT ALARM ACKNOWLEDGE customer service personnel.
These relay contacts can be used to operate auxiliary alarms or other functions. It is recommended that power for auxiliary equipment be supplied from an independent power source, separate for the ISA-300RAL. Place a hole in the enclosure for a...
ISA-300RAL ENMET Corporation 3.4.2 Optional 4-20mA Outputs Isolated 4-20 mA outputs are available for data logging or other purposes. An output is supplied for each sensor supplied in a particular instrument, and can be added when a sensor is added in the field. These outputs are available on the Connector 1 for channels 1 &...
4.1 Normal Operation Condition With the ISA-300RAL installed as described in section 3, and in clean air, the POWER green LED is on, the display is lit and the information on the display is as shown in Figure 4 Display, for the sensor(s) installed in the ISA-300RAL.
Differential Setting The Alarm 1 differential value is the delay of the ISA-300RAL staying in alarm condition until after the measured reading Λ has returned past the alarm point by the differential value. Example: If the alarm point is 10 and the differential is 2, the ISA-300RAL will go into alarm at 10 and stay in alarm until the reading has dropped below 8.
(no D present) – Indicates alarm 23.5 Λ Λ is in Standard Setting. L23.5 1000 Λ Λ Function Alternating ALARM1 Delays (Seconds) Function mASPAN 30.0 5000 Function Enter Maint Menu Enter Password See Maintenance Menu Diagram Figure 5: ISA-300RAL Operation Menu Flow Chart...
: Never spray a cleaning solution on the surfaces of the ISA-300RAL devices. AUTION Clean the exterior of the ISA-300RAL enclosures with a mild soap solution on a clean, damp cloth. Do not soak the cloth with solution so that moisture drips onto, or lingers on, external surfaces.
MAINTENANCE MENU Press O to return to top of maintenance menu. PTION Press S to return to operational menu. Exit maint menu ELECT See Section 5.3.9 for instructions on how to exit Maintenance Menus. Figure 6: ISA-300RAL Maintenance Menu Flow Chart.
Wait 24 hours after initially supplying air and power to the ISA-300RAL sensor before initial calibration. It is not necessary to open the Front Panel to make adjustment. The calibration functions are operated through the...
5.3.1A Low Cal/ZeroCal Adjust A Low Cal function should be performed only when the ISA-300RAL sensor are exposed to clean uncontaminated air. Use a cylinder of 20.9% oxygen to provide a clean air reference if necessary. Attach the cylinder to the calibration adapter, attach the adapter to the instrument and allow gas to flow over the sensor for up to 4 minutes.
ISA-300RAL ENMET Corporation 5.3.2 Set 4 –20mA Transmitter Scale This section of the maintenance menu is installed when there are 4-20mA style sensors for other gases. This function is normally performed at the factory and is not usually required to be performed in the field unless a new transmitter is installed.
Example: If the alarm set point is 10 and the differential is 2, the ISA-300RAL will go into alarm at 10 and stay in alarm until the reading has dropped below 8. Repeat for each sensor alarm 1 to be changed.
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ISA-300RAL ENMET Corporation Example: Set Alarms Flow Chart Displays are examples of Alarms Λ - O = Press Option Indicates alarm triggered on increasing value of reading S = Press Select Indicates alarm triggered on decreasing value of reading Indicates alarm is set for latching Indicates alarm is set for non-latching STD –...
ISA-300RAL ENMET Corporation 5.3.4 Set Alarm Delay The alarms may be set to delay by 1 second increments, up to 255 seconds. Alarm delays are factory set to 5 seconds. To change an alarm delay, you must enter the maintenance menu. Press the switch until “Enter Maint Menu”...
ISA-300RAL ENMET Corporation 5.3.5 Relay Configuration To change a relay configuration you must enter the maintenance menu. Press the switch until “Enter Maint Menu” OPTION is displayed then press switch for the Enter Password menu. Enter the valid password as described below.
S = Press Select 5.3.7 Set Output Span Range To change 4-20 mA output range. This range is set at the factory and should not be changed, contact ENMET for information. Press the switch to continue to next section of maintenance menu.
When all four digits of the new password have been selected, "Set New Password" is displayed. Record the new password; without it, the maintenance menu cannot be reentered once you exit the Maintenance Menu. If the password is lost, call ENMET customer service personnel. From the "Password XXXX" position, Press the switch to return to Set New Password section.
Wait 24 hours after installing a new sensor and supplying air and power to the ISA-300RAL sensor before initial calibration. It is not necessary to open the Front Panel to make adjustment. The calibration functions are operated through the OPTION switches on the front panel.
ISA-300RAL ENMET Corporation 5.4.2 Oxygen Sensor An oxygen sensor must be replaced when it can no longer be calibrated in clean air. To replace the sensor, follow the general steps given for the replacement of a gas sensor, but effect a replacement of the oxygen sensor. After sensor installation, wait four hours before re-calibrating, and again 1 month after replacement.
ISA-300RAL ENMET Corporation 6.0 Technical Data and Specifications 15 Amp fused branch circuit Electrical Power 100-240 VAC 0.9 A 50/60 Hz Board Mounted Fuse FH2, 0.630A, 5 x 20mm Temperature: -20° to +60°C (-4° to +140°F) Storage and Transport preferred 0°...
ENMET shall not be liable for any loss or damage caused by the improper use of the product. The purchaser indemnifies and saves harmless the company with respect to any loss or damages that may arise through the use by the purchaser or others of this equipment.
10 ppm and 20 ppm CO have been used as maximum limits and standard instrument alarm points. The ISA-300RAL has two preset alarm set points, at 10 ppm and 20 ppm CO, which are adjustable, but cannot be set below 5 ppm or above 100 ppm.
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734.761.1270 Fax 734.761.3220 Returning an Instrument for Repair ENMET instruments may be returned to the factory or any one of our Field Service Centers for regular repair service or calibration. The ENMET Repair Department and Field Service Centers also perform warranty service work.
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