GE XDP-H2 User manual

GE
Sensing
XDP-H2
Panametrics Explosion-Proof Display Package
User’s Manual
910-204B2
January 2008
The XDP Panametrics Explosion-Proof Display Package is a GE Panametrics product. GE Panametrics has
joined other GE high-technology sensing businesses under a new name—GE Industrial, Sensing.
Attention!
This manual is for use with XDP units
with H2 software (E=2) only.

iii
January 2008
Warranty Each instrument manufactured by GE Sensing, Inc. is warranted to be
free from defects in material and workmanship. Liability under this
warranty is limited to restoring the instrument to normal operation or
replacing the instrument, at the sole discretion of GE. Fuses and
batteries are specifically excluded from any liability. This warranty is
effective from the date of delivery to the original purchaser. If GE
determines that the equipment was defective, the warranty period is:
•one year for general electronic failures of the instrument
•one year for mechanical failures of the sensor
If GE determines that the equipment was damaged by misuse,
improper installation, the use of unauthorized replacement parts, or
operating conditions outside the guidelines specified by GE, the
repairs are not covered under this warranty.
The warranties set forth herein are exclusive and are in lieu of
all other warranties whether statutory, express or implied
(including warranties of merchantability and fitness for a
particular purpose, and warranties arising from course of
dealing or usage or trade).
Return Policy If a GE Sensing, Inc. instrument malfunctions within the warranty
period, the following procedure must be completed:
1. Notify GE, giving full details of the problem, and provide the model
number and serial number of the instrument. If the nature of the
problem indicates the need for factory service, GE will issue a
RETURN AUTHORIZATION number (RA), and shipping instructions
for the return of the instrument to a service center will be
provided.
2. If GE instructs you to send your instrument to a service center, it
must be shipped prepaid to the authorized repair station indicated
in the shipping instructions.
3. Upon receipt, GE will evaluate the instrument to determine the
cause of the malfunction.
Then, one of the following courses of action will then be taken:
•If the damage is covered under the terms of the warranty, the
instrument will be repaired at no cost to the owner and returned.
•If GE determines that the damage is not covered under the terms
of the warranty, or if the warranty has expired, an estimate for the
cost of the repairs at standard rates will be provided. Upon receipt
of the owner’s approval to proceed, the instrument will be repaired
and returned.

Chapter 1

General Information
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Basic Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
A Typical Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

General Information 1-1
January 2008
Introduction The XDP Explosion-proof Display Package has been designed as one
component of a system that monitors the composition of a binary gas.
The second component is a remotely-mounted sensor/transmitter,
such as the GE Sensing Model TMO2-TC or similar device.
Note: Refer to the documentation supplied with the specific
transmitter used for complete information on the transmitter.
The XDP performs the following basic functions:
•supplies the 24 VDC required to power the transmitter
•accepts and processes the 4-20 mA output from the transmitter
•shows a selected process parameter on a digital display
•provides a user interface for programming the system
•provides user-configurable alarm relays and analog outputs
The XDP is wall-mounted via its integral mounting plate and it is
connected to the transmitter with an electrical conduit. Both
components can be rated for use in Class I, Division 1, Groups B, C &
D hazardous environments.
Basic Features The XDP incorporates the following basic features:
•wall-mountable, explosion-proof enclosure
•40 W universal VAC power input
•24 VDC power output
•4-20 mA analog input
•high-resolution, backlit LCD digital display
•infrared (“through-the-glass”) programming keypad
•a Windows-like graphical user interface
•three built-in gas measurement ranges
•two isolated 4-20 mA analog outputs
•four general-purpose alarm relays
•built-in error reporting diagnostics
See Figure 1-1 on page 1-2 for a picture of the XDP.

January 2008
1-2 General Information
Basic Features (cont.)
Figure 1-1: The XDP
System Overview In a binary gas mixture, the transmitter measures the concentration of
a target gas in a known background gas (see the documentation for
the transmitter for a discussion of the specific technology employed
by the sensor mechanism). To be suitable for use in an XDP system,
the transmitter must meet the following requirements:
•powered by the +24 VDC output from the XDP
•output a 4-20 mA signal to the XDP analog input
•meet all performance specifications for the system
•suitable for use in the specified environment
The XDP accepts the 4-20 mA analog input from the transmitter and
processes the information. Then, the results are displayed on the
built-in digital display window. In addition, the data may be output as
a linear analog signal to drive a data recorder and/or controller device.

General Information 1-3
January 2008
A Typical Application Heavy-duty electricity generators are typically cooled with hydrogen
gas to maximize generator efficiency. The hydrogen gas level is
continuously monitored, at both ends of the generator. An XDP
system with a remote transmitter is ideally suited for this service.
During normal operation, the hydrogen gas must be monitored for the
presence of air, which would create an explosion hazard. Then, in
preparation for a maintenance shutdown, the hydrogen gas is purged
with carbon dioxide gas before the chamber is opened up and exposed
to air. At the conclusion of the maintenance work, the chamber is
resealed and the air is purged with carbon dioxide. Finally, the carbon
dioxide is purged with hydrogen prior to resuming operation. Thus, at
various times, the following gas mixtures must be monitored:
•70-100% hydrogen in air
•0-100% hydrogen in carbon dioxide
•0-100% air in carbon dioxide
GE Sensing offers several transmitters that are well suited for
operation in all of these environments, and the XDP has been
designed to permit quick and easy switching between the analysis and
display of these three gas mixture inputs.
Alarm Settings When factory-configured for this typical application, the XDP’s built-
in alarms are set up as follows:
•XDP Normal Alarm: failsafe, tripped if:
a. active curve is not H2/AIR
b. field calibration is in progress
c. any built-in error condition occurs
d. power to the XDP is interrupted
•XDP Fault Alarm: failsafe, tripped if:
while in measurement mode:
a. any error condition, except Low H2 or Low-Low H2, occurs
b. power to the XDP is interrupted
or
while in calibration mode:
a. ADC is out of range, mA input under/over range error occurs
b. power to the XDP is interrupted

January 2008
1-4 General Information
Alarm Settings (cont.) •Low Alarm: field-programmable, failsafe or non-failsafe, tripped
in H2/AIR measurement mode by:
a. H2 level below 85% setpoint (programmable)
•Low-Low Alarm: field-programmable, failsafe or non-failsafe,
tripped in H2/AIR measurement mode by:
a. H2 level below 80% setpoint (programmable)

Chapter 2

Installation
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Choosing an Installation Site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Mounting the XDP System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Wiring the XDP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Installation 2-1
January 2008
Introduction This chapter provides a general description of the XDP Explosion-
proof Display Package and gives directions on how to install and wire
the unit for proper operation.
IMPORTANT: The XDP requires an external power disconnect
device such as a switch or circuit breaker. The
disconnect device must be marked as such, clearly
visible, directly accessible, and located within 1.8 m
(6 ft) of the unit.
Be sure to observe all installation limits and precautions described in
this chapter. Pay particular attention to the ambient temperature range
of –10° to +60°C (14° to +140°F) specified for the instrument.
!WARNING!
To ensure safe operation of the XDP, the unit must be
installed and operated as described in this manual. Also, be
sure to follow all applicable local safety codes and
regulations for installing electrical equipment. In addition,
all procedures should be performed by trained service
personnel.
Proceed to the next page to begin the installation.

January 2008
2-2 Installation
Choosing an Installation
Site All environmental and installation factors should have been discussed
with a GE Sensing applications engineer or field sales person at the
time the XDP was ordered. Thus, the equipment should be suited to
the application and the planned installation site. However, before
installing the unit, read these guidelines to verify that the best
installation site has been chosen for optimum instrument accuracy
and reliability.
•Make sure that the XDP and transmitter enclosures are suitable for
the environmental conditions at the installation site.
•Install the system in a location with little or no vibration.
•Mount the transmitter in accordance with the instructions provided
in its accompanying documentation.
•Make sure the ambient temperature at the XDP installation site is
–10° to 60°C (14° to 140°F).
•Use a suitable electrical conduit to interconnect the remote
transmitter and the XDP enclosure.
•Use a suitable sample system between the gas source and the
sample inlet of the transmitter.
•Observe all normal safety precautions. Specifically, do not exceed
the maximum pressure and temperature ratings of the transmitter
or the sample system.
•Install the XDP system in a location that provides ready access for
programming, testing, and servicing the unit.
•Protect all cables from excessive physical strain (bending, pulling,
twisting, etc.). Do not subject the cables to temperatures above
65°C (149°F) or below –50°C (–58°F).
•Be sure that the line voltage used at the planned installation site
corresponds to the factory preset line voltage rating for the XDP.

Installation 2-3
January 2008
Mounting the XDP
System This section explains how to mount the XDP system components and
the transmitter/sample system at the installation site.
IMPORTANT: The XDP requires an external power disconnect
device such as a switch or circuit breaker. The
disconnect device must be marked as such, clearly
visible, directly accessible, and located within 1.8 m
(6 ft) of the unit.
IMPORTANT: This symbol indicates Caution - risk of electric
shock:
Mounting the XDP
Enclosure Refer to Figure 2-1 on page 2-9, and complete the following steps to
mount the XDP enclosure:
1. Select a flat surface on a vertical wall or instrument panel with
sufficient space to hold the XDP enclosure.
2. Using the mounting dimensions shown in Figure 2-1 on page 2-9,
locate and prepare four (4) mounting holes or two (2) horizontal
mounting rails on the vertical surface.
3. Secure the XDP enclosure to the mounting surface with four (4)
sets of mounting hardware. Be sure that the enclosure is in a
vertical position, with the display window at the top.
Mounting the Remote
Transmitter/Sample
System
Mount the remote transmitter in accordance with the instructions in
its accompanying documentation.
Note: Most GE Sensing transmitters may be located up to
2,800 ft (850 m) from the XDP enclosure.
To provide reliable and accurate results, the transmitter is often
installed in a suitable sample system. The sample system is designed
to deliver a clean, representative gas sample to the inlet of the
transmitter at the proper temperature, pressure and flow rate.
Note: A suitable sample system may be ordered directly from GE
Sensing. The sample system would be supplied fully assembled
on a flat plate with four (4) mounting holes. See the sample
system and/or transmitter manuals for more details.

January 2008
2-4 Installation
Wiring the XDP To completely wire the XDP, connect the following items:
•analog output from transmitter (J6)
•+24 VDC input to transmitter (J6)
•XDP alarm relays (J3)
•XDP analog output (J8)
•serial port (J4) - optional
•line power (J1)
Note: See Appendix B, Additional Wiring Connections, for a
discussion of connections to terminal blocks J2, J5, and J7.
Refer to the wiring diagram shown in Figure 2-2 on page 2-10, while
completing the instructions presented in this section.
!Attention European Customers!
To meet CE Mark requirements, install all cables as
described in Appendix A, CE Mark Compliance.
IMPORTANT: The XDP requires an external power disconnect
device such as a switch or circuit breaker. The
disconnect device must be marked as such, clearly
visible, directly accessible, and located within 1.8 m
(6 ft) of the unit.
!WARNING!
To ensure safe operation of the XDP, the unit must be
installed and operated as described in this manual. Also, be
sure to follow all applicable local safety codes and
regulations for installing electrical equipment. In addition,
all procedures should be performed by trained service
personnel.
Remove the two side covers on the XDP enclosure. This is
accomplished by loosening the set screw in the cover and using a long
screwdriver or rod in the slots provided to unscrew the cover. Proceed
to the appropriate sub-section to wire each of the terminal blocks.
Note: A long, pin-like, plastic wiring tool is stored inside the XDP
enclosure. Insert the tool into the connector pin being wired to
open the hole, and then insert the wire. When the tool is
removed, the wire is clamped into the connector.

Installation 2-5
January 2008
Wiring The Remote
Transmitter - J6 Terminal block J6 contains the analog signal and loop power
connections for the remote transmitter. To wire the transmitter,
complete the following steps:
1. Connect the XDP to the transmitter as follows:
Note: Refer to the transmitter manual for details on wiring the
transmitter’s terminal block(s).
a. Connect pin #1 to the positive terminal of the analog output
from the transmitter.
b. Connect pin #2 to the +24 VDC loop power input on the
transmitter.
c. Connect pin #3 to the return connection of the analog output
from the transmitter.
Proceed to the next section to continue wiring the XDP.
Wiring The XDP Alarm
Relays - J3 Terminal block J3 contains connections for the XDP alarm relays. To
wire these alarms, complete the following steps:
Note: A failsafe alarm is wired to the normally-closed (NC)
contacts, while a non-failsafe alarm is wired to the normally-
open (NO) contacts.
1. Connect the Normal alarm as follows (this alarm is factory-
configured for failsafe operation):
a. Connect pin #1 (NC) to the alarm device input.
b. Connect pin #2 (C) to the alarm device return.
c. Pin #3 (NO) is not used for fail-safe operation
2. Connect the XDP Fault alarm as follows (this alarm is factory-
configured for failsafe operation):
a. Connect pin #4 (NC) to the alarm device input.
b. Connect pin #5 (C) to the alarm device return.
c. Pin #6 (NO) is not used for fail-safe operation

January 2008
2-6 Installation
Wiring The XDP Alarm
Relays - J3 (cont.)
3. Connect the XDP Low alarm as follows (this alarm is factory-
configured in failsafe mode, but may be reconfigured):
a. Connect pin #7 (NC) to the alarm device input.
b. Connect pin #8 (C) to the alarm device return.
c. Pin #9 (NO) is not used for fail-safe operation.
4. Connect the XDP Low-Low alarm as follows (this alarm is factory-
configured in failsafe mode, but may be reconfigured):
a. Connect pin #10 (NC) to the alarm device input.
b. Connect pin #11 (C) to the alarm device return.
c. Pin #12 (NO) is not used for fail-safe operation.
Proceed to the next section to continue wiring the XDP.
Wiring the XDP Analog
Output - J8 Terminal block J8 contains connections for the XDP’s analog output.
To wire this analog output, complete the following steps:
1. Connect pin #1 to positive input on the analog output device.
2. Connect pin #2 to the negative input on the analog output device.
3. Pin #3 has no connection.
Proceed to the next section to continue wiring the XDP.
Wiring the Optional Serial
Port - J4 Terminal block J4 contains connections for the XDP’s serial port. The
connections on terminal block J4 are optional, in that they are not
required for proper operation of the analyzer. To wire the serial port,
complete the following steps:
Note: This connection may be made with a GE Sensing
#704-668 cable. If this cable is used, pin #1 is the red wire, pin
#2 is the white wire, and pin #3 is the green wire.
1. Connect pin #1 to the transmit pin on the computer.
2. Connect pin #2 to the receive pin on the computer.
3. Connect pin #3 to the return pin on the computer.
Proceed to the next section to continue wiring the XDP.

Installation 2-7
January 2008
Wiring The Line Power The terminal block on the power supply board contains connections
for the line power to the XDP. Make these connections only with wire
that meets the following specifications:
•individual conductor gauge of 18 AWG minimum (maximum
current capacity of 12 Amps)
•voltage rating of 600 Volts minimum
•insulation temperature rating of 105°C minimum
!WARNING!
The rating of the wire insulation must be at least 15°C
above the expected ambient temperature.
Refer to Figure 2-2 on page 2-10 and complete the following steps:
!WARNING!
Before proceeding with the section, verify that the line
power has been turned off at the external disconnect
device.
1. Attach a cable or conduit with the three line power conductors to a
cable entry port on the electronics enclosure.
Caution!
Be sure that the input voltage to the XDP complies with
the value specified at the time of purchase.
2. Connect the line power leads to terminal block J1 as follows:
a. Connect the line power lead (black) to pin Lon the power
connector.
b. Connect the neutral power lead (white) to pin Non the power
connector.
c. Connect the ground power lead (green) to the chassis ground
screw shown in Figure 2-2 on page 2-10.
3. Make sure that the factory-installed jumper wire at pin Gon the
power connector is secure.
This completes the wiring of the XDP. Proceed to Chapter 3,
Operation, for instructions on using the meter.

January 2008
Installation 2-9
10.54
(268)
8.23 (209)
6.00 (152)
8.00 (203)
9.14 (232)
5.60
(142)
4.99 (127)
3.00
(76) 5.00 (127)
Figure 2-1: XDP Mounting Dimensions

January 2008
Installation 2-10
This unit requires an external power
disconnect device such as a switch or
circuit breaker. The disconnect device
must be marked as such, clearly visible,
directly accessible and located within 1.8
m (6 ft) of the XDP.
XDP ALARMS - J3
DescriptionPin No.
NOTE:
1
2
3
4
5
6
7
8
9
10
11
12
Normal (NC)
Normal (C)
Normal (NO)
Fault (NC)
Fault (C)
Fault (NO)
Low (NC)
Low (C)
Low (NO)
Low-Low (NC)
Low-Low (C)
Low-Low (NO) Return (RTN)
Receive (RX)
Transmit (TX)
Description
3
2
1
Pin No.
RS232/485 COMM - J4
Pin No.
1
2
3(See Appendix B)
required here.
No connections
Description
SYSTEM ANALOG OUTPUT - J5
Description
SYSTEM FAULT ALARM - J2
1
2
3
Pin No.
Description
11
12
10
9
8
7
3
2
1
Pin No.
6
5
4
OTHER CONNECTIONS - J7
XDP ANALOG OUTPUT - J8
Pin No.
3
2
1
No Connection
Return (RTN)
Analog Output (AOUT)
DescriptionDescription
Analog Input (IN)
Power Output (+24)
Return (RTN)
TRANSMITTER CONNECTIONS - J6
Pin No.
1
2
3
LEFT SIDE CONNECTIONS RIGHT SIDE CONNECTIONS
Color*
Red
White
Green
[* wire colors for Panametrics
#704-668 serial cable]
No connections
required here.
(See Appendix B)
No connections
required here.
(See Appendix B)
Ground Terminal
Description
Line Input (100-240 VAC)
Line Neutral
Line Ground
AC POWER INPUT - TB1
Pin No.
G
N
L
Voltage
Size
Type
Rating
Factory Jumper
1.25 Amp
5 x 20 mm
T
250 V
FUSE
Figure 2-2: XDP Wiring Connections (Drawing #702-363)

Chapter 3