background image

System Overview

 

 
Model PT750 Series Wireless Annunciator is designed to communicate with the Fixed Gas 
Control panel on the main Rig and the Wireless Control Panel on the Rig Camp.  The line of 
sight distance is 2 Km using dipole antenna.   
 
The color touch screen display provides continuous gas readings for all the detectors 
connected to the (fixed) main control panel and the wireless controller.   Up to 16 detectors 
can be displayed on a standard unit with 4.5” display screen.  A larger screen display is used 
for more than 16 channels. 
 
PT750 requires RS-485 data transmitters to be installed on both Fixed and Wireless control 
panel.  No hardware configuration is required. Once RS485 data transmitters are installed on 
the gas control panels, simply connect the AC power to the unit, follow a simple configuration 
of the channels as outlined in the next section and the unit should be fully operational. 
 
 
 

Installation 

 

PT750 Annunciator is a wall-mount fiberglass unit.  Annunciator must be installed indoor. 
Simply mount the unit to the wall. If the line of sight is not clear to the RS-485 transmitter on 
the fixed control panel or the wireless controller then external antenna at an appropriate 
height must be installed. Connect the external antenna and the annunciator using a low loss 
coax cable.   
 
 

 

Содержание PT750 Series W

Страница 1: ...ding 2 Sugar Land Texas 77478 Ph 281 494 2069 Fax 281 494 2167 www pem tech com Installing Wireless Annunciator to existing Fixed and Wireless Gas Detection Control Panels Rev 1 23 March 2016 Gas Detection Technology Houston Texas ...

Страница 2: ...touch screen The unit has a wireless radio module inside the enclosure All is required to simply install the ac power connection and install dipole antenna This new annunciator will replace the existing annunciator that requires wire connection to the main control panel Simply remove the old one and install the new one If necessary the dipole antenna can be replaced with the outdoor antenna using ...

Страница 3: ...reless transmitter simply requires the power connection 24VDC and the RS485 connection from the PT920 control panel or PT2008 Connection board The RS 485 terminal on PT920 and PT2008 are labeled as T and T See the attached drawing Wiring Connection RS 485 Wireless Transmitter Red Connect to 24VDC positive supply Black DC Ground Blue Connect to T RS485 White Connect to T RS485 ...

Страница 4: ......

Страница 5: ... ...

Страница 6: ...d Building 2 Sugar Land Texas 77478 Ph 281 494 2069 Fax 281 494 2167 www pem tech com Wireless Annunciator for Fixed and Wireless Gas Control Panels Operators Manual Gas Detection Technology Houston Texas Rev 1 23 March 2016 ...

Страница 7: ...res RS 485 data transmitters to be installed on both Fixed and Wireless control panel No hardware configuration is required Once RS485 data transmitters are installed on the gas control panels simply connect the AC power to the unit follow a simple configuration of the channels as outlined in the next section and the unit should be fully operational Installation PT750 Annunciator is a wall mount f...

Страница 8: ...normal mode the unit display data from all the gas detectors interface to fixed and wireless controller Each detector can be assigned a location tag for easy identification Refer to system configuration section to assign location tags to each detector Figure 1 System Startup Information Screen Figure 2 Normal Data Display Screen ...

Страница 9: ...reen 1 Location Name Touch the edit field for keypad to popup and then enter the name of the location example Rig or specific location of the site 2 Edit Sensor Location Tags Location tags for wireless and fixed controller to be edited Press the appropriate button to edit the sensor location tags The following 2 screen shots shows how the sensor location tags are entered Location tags are entered ...

Страница 10: ...rror message on the screen On the screen shot below note that all the sensor for the fixed system are enabled but for the Wireless control channel 8 is disabled since the controller is only equipped with 7 wireless detectors Note The Sensor location tags will not have any effect on the operation of the unit since these tags are simply for readability and to determine the location of the sensor The...

Страница 11: ...Figure 5 Sensor Location Tags and Enable Disable for Wireless Gas Controller ...

Страница 12: ... will be displayed The screen shows 4 buttons to activate test alarms Low and High alarm for H2S and LEL Simply press the Red mushroom button to toggle the alarm ON OFF Notice the Red Button on top right corner Use the button if the annunciator is also to send command to PT2008 Controller on the Rig Camp to activate the alarm installed on the camp If alarm test is not required on the Rig Camp simp...

Страница 13: ...y diagnostic and trouble message Following are sample data display for a sensor Sensor at Shale Shaker Normal state Sensor at Shale Shaker High H2S Gas Reading starts flashing in Red Control Module on channel 8 Fixed Gas Monitor Module in alarm bypass mode via Toggle switch on the module Sensor in FAULT Sensor in Calibrate Mode Communication Failure with control module Low Battery Signal Only for ...

Страница 14: ...screen Once the alarm clears the red flashing messages are cleared However the sensor location tag will still be flashing This feature is useful if any detector went into alarm and then cleared after sometime With the tag flashing the user can determine which detector went into alarm state This flashing tag can be reset or cleared by pressing the RESET button on the status bar ...

Страница 15: ...l reactivate the alarms If alarms are cleared pressing the RESET will clear the flashing sensor location tags if any Alarm Bypass Pressing the Alarm Bypass button will send the command to the control panel The bypass mode on the fixed control panel is a soft bypass for 30 minutes After 30 minutes all the control modules on the fixed system and wireless controller will return to normal mode ...

Страница 16: ......

Страница 17: ... ...

Отзывы: