PEMTECH PT800 Series User manual

Model PT800 Series
Dual Channel Wireless Gateway
Part Number: 17-802-R24-S
Revision 1
February 2014
Operator’s
Manual
Pem-Tech, Inc.
Houston, Texas
U.S.A
www.pem-tech.com
Gas Detection Technology

Model PT800 Series Dual Channel Wireless Gateway with integrated Audio
and Visual Alarms
2 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

Table of Contents
Section Page #
1.0 Introduction …………………………………………………………… 4
2.0 Setting Up Gateway……………………………………………………… 6
2.1 Station ID number………………………………………………….. 7
2.2 Zone / Network ID ………………………………………………….. 9
3.0 Configuration …………………………………………………………… 10
3.1 Modify Channel Configuration……………………………………. 10
3.2 Setup Alarm Levels ……………………………………………….. 11
4.0 Normal Operation ……………………………………………………….. 13
4.1 Data Display ………………………………………………………….. 13
4.2 Alarms ……………………………………………………………… 14
Figure 4. External Audio Visual Alarm Connection 16
3 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

1.0 Introduction
The heart of the system is a Gateway Module (PT800-2RF) that is designed to interface with
two (2) Model PT295 Series Detectors and transmits the sensor data to 2000 Series Wireless
Controller over wireless Network. A complete data package is transmitted to Wireless
Controller including the sensor readings, diagnostic data and the battery voltage. Using
directional Yagi Antenna the data can be transmitted to 2000 Series control panel up to 17
Kilometers away (line of sight).
On board are 6 alarm relay contacts that are used for A/V Alarm Warning devices. The
gateway is typically installed in a Nema 4X Enclosure with a 12 VDC Power Supply. This makes
the system ideal to be used as Dual Sensor Stand Alone Wireless Gas Monitoring System. See
Figure 2.
Figure 1. PT800 Series Main Wireless Gateway module for data transmit
4 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

Figure 2Dual Channel Stand Alone Wireless System
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5 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

2.0 Gateway Setup
The first step after unit power up is to assign the Station ID # and the Network / Zone ID. The gateway
ID and zone id need to be programmed only once. The data is retained in a non-volatile memory and is
not lost when the gateway is powered down. Station ID and Network ID are recalled from the memory
when the unit is powered up again.
Step # Description
1
Install or Mount the Gateway (tripod or mounting structure)
2
Install the Solar Panel to a pole using pole mount brackets provided with the
solar panel. Set the direction of the solar array for the maximum exposure to
the sunlight.
3
Install the Omni direction antenna at least 6 – 8 feet above ground. Using coax
cable connect surge arrestor on the bottom of the enclosure to the antenna.
4
External Battery connection must be provided by the user. Connect 12VDC
Battery power to the terminals inside the gateway Steel Enclosure. See figure 2
above.
5
Connect the solar panel to the quick connect receptacle on bottom of the
enclosure labeled “SOLAR PANEL”
6
Connect the PT295 series Toxic (H2S) and LEL Sensor on the quick connect
receptacle on the bottom of enclosure. The receptacles are labeled as H2S and
LEL for proper sensor connections.
7
To turn the power on simply press the green tab /switch on 4A circuit breaker.
Caution
Always connect the battery before the solar panel is connected to the gateway. Never run the system
only on solar power without connecting the battery.
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2.1 Programming Gateway Station ID #
Each gateway that needs to send data to the main control panel must be configured with a
station ID number. Each Gateway uses this distinct ID number to identify itself to PT2000
Series Main Control Panel. All the Gateways on the network must have a unique station ID #.
That is no two gateways shall have the same Station ID. Since each gateway is a dual channel
the data transmitted to the main control panel in a 2 sensor data block format. Thus
detectors connected to Station1 would be identified as detector 1 and 2; for Station2
detectors would be identified as # 3 and #4 and so.
Thus for 24 Channel PT2000 Series control panel up to 12 Gateways can be installed on the
network.
Internal Magnetic Switch – 1
To Set Station # and Zone ID
Internal Magnetic Switch – 2
To Set Channel / Sensor Type &
Low & Hi Alarm Levels
Figure 3. Sensor Interface and Control Module
7 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

To set the Station ID hold the magnetic wand to an internal magnetic switch labeled as SW-1
situated on upper left corner of the unit. The LCD will display two options (one at time) to
select from.
To select “Set Station#” hold the magnet to SW-1 when this option is displayed.
To change the Station ID hold the magnet to SW-1 and the ID starts changing. The
numerical valued is incremented by 1. The maximum value of the Station ID is 16. The
value rolls over to 1 once maximum value is exceeded.
Once the desired station ID is achieved, move the magnet away. After 5 seconds of no
switch activity the unit will return to its normal operation.
The new stations ID is retained in non-volatile memory is recalled when the unit is
powered up again.
Set
Station#
Set
Zone ID
LCD swaps these 2 messages
For the user to select
8 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

2.2 Programming Gateway Zone/Network ID
A distinct Network or Zone ID is used if multiple systems are working within the wireless
range of each other. This is to avoid cross talk between gateways and controllers. By
assigning a distinct Zone/Network ID the gateway and controller will communicate only the
ones with the same Network ID. Up to 7 distinct Zones IDs can be assigned (0 thru 6)
Caution
Before changing the network ID be sure that 2000 Series Controller is programmed with the
same Network / Zone ID else there will be communication failure between the devices.
Leave the controller and gateway on defulat 0 as Network ID if there are no other PT2000
Systems in the area.
To set the Zone ID hold the magnetic wand to an internal magnetic switch labeled as SW-1
situated on upper left corner of the unit. The LCD will display two options (one at time) to
select from.
To select “Set Zone ID” hold the magnet to SW-1 when this option is displayed.
To change the Zone ID hold the magnet to SW-1 and the ID starts changing. The
numerical valued is incremented by 1. Zone ID can be set between 0 and 6. The value
rolls over to 0 after 6.
Once the desired Zone ID is achieved, move the magnet away. After 5 seconds of no
switch activity the unit will return to its normal operation.
The new Zone ID is retained in non-volatile memory is recalled when the unit is
powered up again.
Set
Station#
Set
Zone ID
LCD swaps these 2 messages
For the user to select
9 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

3.0 Configuration
There are 2 sensor connections on the Gateway that must be configured for proper sensor
type. The correct sensor type is necessary to activate on board Audio/Visual alarms as well as
identifying the sensor data to the main control panel.
The gateway firmware allows the use the select multiple sensor types that available, for
example, H2S , LEL , CO & SO2.
Next the alarm levels for each channel should be properly programmed. The unit has default
alarm levels set. However, user should verify and change the alarm levels as needed.
Note
Alarm levels programmed in the gateway are independent of the alarm levels programmed in
the 2000 series control panel.
3.1 Modify Channel Configuration
To set the Channel / Sensor type hold the magnetic wand to an internal magnetic switch
labeled as SW-2 situated on lower left corner of the unit. The LCD will display two options
(one at time) to select from.
To select “Setup Channels” hold the magnet to SW-2 when this option is displayed.
The gateway will first display the current channel settings as follows:
The above illustrates Channel 1 is currently set to H2S sensor type. To change sensor type
hold the magnetic wand to SW-2 position and sensor type selection changes.
Set
CH1=H2S
Setup
Channels
Setup
Alarms
LCD swaps these 2 messages
For the user to select
10 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

Notice the last window on the above displayed option. If the channel is not connected to any
sensor then set it as NA. This is to avoid false alarm activation by the gateway as well as to
avoid sending incorrect data to the controller. Essentially the signal from this channel is
completely ignored.
Once the desired channel type selection is displayed move the magnet away. After 5 seconds
of no switch activity the unit will display prompts to setup channel # 2. Configure channel 2
in a similar way.
When both channels have been configured the unit will display and return to
normal operation.
3.2 Setup Alarm Levels
To set the alarm levels hold the magnetic wand to an internal magnetic switch labeled as SW-
2situated on lower left corner of the unit. The LCD will display two options (one at time) to
select from.
To select “Setup Alarms” hold the magnet to SW-2 when this option is displayed.
Each Channel can be configured for 2 levels of alarm, Low and High. Low alarm level triggers
the visual alarm device (Strobes) while high alarm level activates the audio alarm (Horn).
Set
CH1=H2S
Set
CH1=LEL
Set
CH1=CO
Set
CH1=SO2
Set
CH1= NA
Channels
Set OK
Setup
Channels
Setup
Alarms
LCD swaps these 2 messages
For the user to select
11 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

Program Low alarm Level First
Shows the CH.1 low alarm is currently set at 10. To change low alarm level
hold the magnetic wand to SW-2 until the alarm level starts changing. The
value is increment by 1. The value rolls over to 0 and starts counting again
once reached to full scale range of the sensor. Touch on SW-2 with magnet to
increment the level count or SW-1 to decrement the level count.
Once the Low alarm value reached the desired alarm level move the magnet away. After 5
seconds of the prompts to set Hi alarm levels are displayed.
Program High alarm Level Next
Shows the CH.1 High alarm is currently set at 15. To change High alarm level
hold the magnetic wand to SW-2 until the alarm level starts changing. The
value is increment by 1. The value rolls over to 0 and starts counting again
once reached to full scale range of the sensor. Touch on SW-2 with magnet to
increment the level count or SW-1 to decrement the level count.
Once High alarm level has been set move the magnet away. Channel 1alarm levels have been
configured.
The gateway will now continue to set alarm levels for channel 2.
Program the alarm levels following the same procedure as above. When both channel alarm
levels have been set is displayed.
The alarm levels are saved in non-volatile memory and are recalled when the unit is powered
up.
Note:
Whenever the channels are configured for new sensor type, the alarm levels will be changed to
Default alarm levels for the new sensor type. Be sure to re-program the alarm levels if they are
different than what your application requires.
CH1-H2S
Low= 10
CH1-H2S
Hi = 15
Alarms
Set OK
12 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

Following are the default Alarm Levels for each sensor type.
4.0 Normal Operation
During Normal Operation the gas readings for each sensor and the battery voltage are
displayed. Each sensor data is displayed for about 5 seconds and then current battery voltage
is displayed. If any sensor is in FAULT condition or being calibrated is displayed on the LCD.
Also the same information is transmitted to PT2000 Series Controller. The battery level is also
transmitted including the low battery signal if true.
Following are sample display prompts in normal operation.
Gas Reading at sensor /CH# 1 (H2S = 0 ppm)
Gas Reading at sensor /CH# 2 (LEL= 5 %)
Channel 1- H2S Sensor is in calibrate mode.
Current Battery Level is 12 VDC
Sensor Type Low Alarm High Alarm
H2S
10 ppm
15 ppm
LEL
20 %
40 %
CO
20%
40%
SO2
5 ppm
10 ppm
CH1=H2S
00 ppm
CH2=LEL
5 %
CH1=H2S
* CALIB *
Battery
12.0 V
13 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

4.1 Alarms
The gateway provides connections for 3 Audio and Visual Alarm devices. See Figure 1 for A/V
device connections. Two Visual Alarm device connections labeled as “Amber” and “Red” are
used as Low Alarm indicators for Channel 1 and Channel 2. The third connection labeled as
“Horn” serves as a common Audio High Alarm for both channels.
Also 3 additional relays that can be used as auxiliary relays for external alarm devices. See
Figure 4 for wiring diagram.
It is important to note that “Amber” alarm connection will always be activated as low alarm
for channel 1 and “Red” alarm connection will always be activated as low alarm for channel 2.
Following examples illustrates how the audio Visual alarms are activated for different channel
or sensor configuration settings.
4.1 Data Display
Example 1:
Channel 1 = H2S & Channel 2 = LEL
Example 2:
Channel 1 = SO2 & Channel 2 = LEL
Low H2S Alarm
Amber Strobe
Low LEL Alarm
Red Strobe
High H2S/LEL
Horn
Low SO2 Alarm
Amber Strobe
Low LEL Alarm
Red Strobe
High SO2/LEL
Horn
14 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

Example 3:
Channel 1 = H2S & Channel 2 = SO2
Low H2S Alarm
Amber Strobe
Low SO2
Alarm
Red Strobe
High H2S/SO2
Horn
15 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014

Figure 4. External A/V Alarm Connection
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
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
16 Operators Manual Dual Channel Wireless Gateway Rev 1. Feb 2014