Related Manuals for PEMTECH PT900-16FG
Summary of Contents for PEMTECH PT900-16FG
- Page 1 MODEL PT900-16FG 16 CHANNEL GAS MONITOR & CONTROLLER Operator’s Manual Revision 2.0 March 2001 Pem-Tech, Inc. Houston, Texas U.S.A.
- Page 2 NOTICE PEM-TECH INCORPORATED SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OR OMISSIONS MADE HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL LIMITED WARRANTY Pem-Tech, Incorporated warrants all the equipment to be free from defects in workmanship and material.
- Page 3 SERVICE POLICY Pem-Tech has service facility at the factory. For all the repairs contact at our toll free number 1-800-379-3894 or visit our website www.pem-tech.com For all repairs call us for a Return Material Authorization number (RMA). Inform us briefly the nature of the problem and obtain shipping address. Properly pack the equipment before shipping.
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Page 4: Table Of Contents
TABLE OF CONTENTS Specifications Specifications for PT900-16FG Rack assembly Specifications for Model PT950-B Control monitor Overview Programmable Relays Figure 1. PT950-B Control module Front Panel diagram Installation and Startup Figure 2. PT900-16FG Enclosure dimension Figure 3. System Overview drawing, User termination, control modules in... -
Page 5: Specifications
SPECIFICATIONS For PT900-16 Rack Assembly with Power Supply MOUNTING: Wall or Panel Mount ENCLOSURE: NEMA 4X Fiberglass Enclosure with clear window DIMENSIONS: 32”H x 24.5”W x 10”D WEIGHT: 52 Lbs. OPERATING -40 °F to +170 °F. TEMPERATURE POWER INPUT: 110-220 VAC or 24-28 VDC HUMIDITY: 0 to 100% non condensing AUXILIARY ALARM... -
Page 6: Specifications For Model Pt950-B Control Monitor
SPECIFICATIONS For PT950-B Control Module Display Range: 0 to 99 for Toxic and Combustibles 0 to 25.0 % for Oxygen deficiency ( 3 Digit Display) Others depend on the range of the Sensor. Input Signal: 4-20mA (Optional 1-5 VDC) Analog Output: Linear 4-20mA output. -
Page 7: Overview
OVERVIEW Pem-Tech model PT950-B is a microprocessor based single channel monitor that utilizes the latest digital design techniques in instrumentation. The monitor uses an 8-bit high speed RISC processor with a highly accurate analog to digital logic. The controller module receives signals from remote gas transmitters, displays the gas concentration, generates 4-20mA analog output for recorders and relay outputs for alarm warning devices. - Page 8 Captive Screw MODEL PT 950 MONITOR Digital Display HIGH Visual Alarm LED indicators HI−HI MALF Pushbutton switch (Alarm Reset & Adjust) NORMAL ALARMS BYPASS Alarm Bypass Switch PEM−TECH, INC. Handle HOUSTON, TEXAS Figure 1. PT950-B Control Module...
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Page 9: Installation And Startup
INSTALLATION AND START UP Model PT950-B Control Module is suitable to mount in any PT900 Series Rack assembly with card guides for main circuit board mounting. On the front panel a captive screw is provided to secure the control module to the rack. - Page 10 + ==> SENSOR SUPPLY − ==> SENSOR GND E ==> SENSOR SIGNAL IN PEM−TECH INC. APPROVALS DATE DRAWN 3/10/99 CHECKED DRAWING NO. REV. B2000108 ISSUED SCALE SHEET Figure 3. User termination – PT900-16FG 16 Each PT950 series control modules in Fiberglass enclosure...
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Page 11: Ac Or Dc Power Input
AC or DC Power Input A black terminal block is provided at the lower left corner inside the enclosure. The connections on the terminal block are labeled L N G. Connect the external 110-220VAC power to this terminal. If the unit is powered by DC, connect 24 VDC supply to the 2 pin green terminal labeled DC power input on the termination board. - Page 12 TERMINATION BOARD FOR REMOTE SENSOR PT900−16FG TERMINATION BOARD AND TRANSMITTER + (+24 VDC) − (GND / DC RETURN) − − − − E (mA OUTPUT) ALARMS CH10 CH15 CH16 ALARM 1 − − − − DEVICE ALARM 2 DEVICE ALARM 3 DEVICE ALARM 4 DEVICE...
- Page 13 Figure 5. Wiring Auxiliary relay board for common alarm contacts...
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Page 14: Startup
Start Up Complete the following procedures for the normal unit operation. 1. Complete the mounting and wiring procedures described in earlier sections. 2. Follow gas sensor & transmitter operation manual for proper wiring of sensors with the monitor. 3. Verify all the wiring connections to be correct and secure. 4. -
Page 15: Normal Operation And Alarms
NORMAL OPERATION AND ALARMS Normal Operation During normal operation each control module will display the current gas concentration on the display. If the sensor reading is below alarm level then all the alarm relays and the visual alarm LED indicators on the front panel should be off. -
Page 16: Alarm Bypass
Alarm Bypass In the Alarm Bypass mode the monitor will not activate the alarm relays if any of the sensor reading exceeds the programmed alarm level. However, the visual alarm LED indicators will be activated. To put the alarms in bypass mode move the ALARM toggle switch on the front panel of the control module to BYPASS position. -
Page 17: Programming Alarm Levels
Programming Alarm Levels 1. Move the toggle switch on the front panel to BYPASS position. 2. Press and hold the pushbutton switch (above the toggle switch) until the Low alarm LED starts flashing. Release the switch. 3. While the LED is flashing the display will show the current alarm level. -
Page 18: Setting Alarm Contacts As Normally Open Or
RELAYS LATCHING NON−LATHING 1 2 3 4 Setting alarm contacts as Normally Open or Normally Closed To set the alarm contacts as normally open or normally closed set the jumpers for each relay located right above the relay on the control module. - Page 19 Figure 6. PT950-B Control Module...
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Page 20: Malfunction Condition
The malfunction also occurs if wires connecting the sensors are broken. The fault relay is always non-latching and has a common alarm contact on the PT900-16FG termination board. The relay however, can be programmed as normally open or normally closed. -
Page 21: Parts List
Parts List Part Number Description C- 725 117/230VAC to 24 VDC power supply for 16 Control modules and sensors S-418 Auxiliary Relay Board assembly C- 720 Blank Cover plates C-587 Replacement card guide C-127 Mini Sensor Fuse PT950-B Series Control Modules 950-B-H2S Model PT950-B Control Module for H2S sensor 950-B-LEL...