Pyromation 442 User Manual

Series 442 Installation and Operati ng Instructions

1 SAFETY NOTES

Safe and secure operation of the head transmitter can only be guaranteed if the operating instructions and all safety notes
contained are, understood, and followed.

1.1 Correct Use
The unit is a universal, presettable temperature transmitter for resistance thermometer (RTD), thermocouple (TC) as well as
resistance and voltage sensors. The unit is constructed for mounting in a connection head (form B) and field housing. The
manufacturer cannot be held responsible for damage caused by misuse of the unit.

Separate Ex (hazardous area) documentation is attached with this operating manual as drawing M006601, for measurement
systems in hazardous areas. The installation conditions and connection values indicated in these instructions must be followed!

1.2 Installation and operation
The unit is constructed using the most up-to-date production equipment and complies with the safety requirements of the EU
guidelines. If it is installed incorrectly or is misused then certain application dangers can occur. Trained personnel must do
installation, wiring and maintenance of the unit. These personnel must have read and understood these instructions and must
follow them to the letter.

1.3 Operational safety - Hazardous areas
When installing the unit in a hazardous area the national safety requirements must be met. Make sure that all personnel are
trained in these areas. The measurement and safety rules must be followed in all these installations.

2 FUNCTION AND SYSTEM CONSTRUCTION

2.1 Function
Electronic monitoring and transformation of various input signals into an analog output signal in industrial temperature
measurement. The head transmitter is mounted in a connection head (form B) or separated from the sensor in a field housing.
Setting up of the head transmitter is done using a “HART

2.2 Measurement system

Transforming the following input signals:

• Resistance thermometers (RTD) and resistance sensors (in 2, 3 or 4 wire connection systems)

• Thermocouples (TC)

• Voltage sensors into a scalable analog output signal (4…20 or 20…4) mA

Fault monitoring of:

• Measurement range override or undercut

• Sensor breakage and short circuit - not for thermocouples (TC)

3 INSTALLATION

3.1 Installation conditions

Ambient temperature: (-40 to 85) °C [-40 to 185] °F (For hazardous areas, see drawing M006601)
Installation area: Field housing; connection head Form B according to DIN 43 729
Installation angle: No limit

Safety notes: The unit must only be powered by a power supply that operates using an IEC 61010-1 compliant energy limited
circuit.

3.2 Installation

• Feed the sensor leadwires through the central hole in the head tran s mitter

• Position the head transmitter in the connection head in such way so that the current output terminals (terminals 1 and 2) are

towards the cable entry gland.

• Feed the mounting screws (M4 x 20 mm long for form B heads) through the holes in the head transmitter.

• Screw the head transmitter into the field housing using a screwdriver while not over tightening.



Communicator DXR 275” or PC and configuration software.

1 of 11 Phone [phone]

 Copyright 2006 Pyromation, Inc., All rights reserved.

• FAX [phone] or [phone] • www.pyromation.com 442-D

Pos. A

(11.5 to 30) V dc

4 WIRING

4.1 Overview

(4 to 20) mA

Figure 4-1 Head transmitter wiring

4.2 Measurement unit connection
Attention: Switch off power supply before opening the housing cover. Do not install or connect the unit to power. If this is not

followed parts of the electronic circuit will be damaged.

• Sensors:
Connect the sensor leads to the respective head transmitter terminals (Terminals 3 to 6) by following the wiring diagram (see
figure 4-1).

• Output signal and power supply:
Connect dc power cables to terminals 1 and 2 according to the wiring diagram (see figure 4-1).

Hint: The screws on the terminals must be screwed tightly. Head transmitter configuration during measurement operation is
possible. There is no need to disconnect cables!

4.3 HART connection

Connection is made directly using the (4 to 20) mA signal cables. Note: The measurement circuit must have a load of at least
250 Ω. See Figure 4-2 and 4-3.

Connection of a HART hand operating module DXR 275

Figure 4-2 Electrical connection of the HART
A = HART
B = Loop power supply
C = HART



module



transmitter



operating module

D = PLC with passive input

2 of 11 Phone [phone]

• FAX [phone] or [phone] • www.pyromation.com 442-D

 Copyright 2006 Pyromation, Inc., All rights reserved.

Underranging

Linear drop from 4.0 to 3.8 mA

Connection of HART modem using TransComm Software

Figure 4-3 Electrical connection of the HART
A = HART
B = Loop power supply
C = HART



modem



transmitter



modem

D = PLC with a passive input

4.4 Shield grounding

Please take note when installing the head transmitter remotely in a field housing. The shield on the (4 to 20) mA signal output must
have the same potential as the shield at the sensor connections! When using grounded thermocouples, shielding of the output (4
to 20) mA cable is recommended. In plants with strong electromagnetic fields, shielding of all cables with a low ohm connection to
the transmitter housing is recommended.

5 OPERATION

5.1 Communication

The temperature transmitter is setup using the HART
using a universal hand operating module “HART



protocol. The values measured can also be read using the HART protocol



Communicator DXR 275/375.

5.2 HART Communicator DXR 275

Selection of the unit functions using the “HART
special HART

Hint: When using the HART
release the HART



HART



function matrix (see figure 6-2).





function matrix by entering 281 in the LOCK function. The condition remains even after a power failure. The

hand unit all parameters can be read out, however, the programming is blocked. It is possible to

function matrix can be locked again by releasing the personal code number. More detailed information to the HART hand



Communicator” is done using various menu levels as well as with the help of a

operation module can be found in its respective operating manual.

6 INSTALLING

6.1 Installation check

Monitor all connections making sure they are tight. In order to guarantee fault free operation the terminal screws must be tight onto
the connection leads. The unit is now ready for operation.

6.2 Function check

Measuring the analog (4 to 20) mA output signal or following failure signals:

Overranging Linear increase from 20.0 to 20.5 mA
Failure, e.g. sensor breakage; sensor

short circuit

6.3 Installation

Once the power supply has been connected the head transmitter is operational.

3 of 11 Phone [phone]

≤ 3.6 mA (“low”) or ≥ 21 mA (“high”), can be selected
The “high” alarm setting can be set between 21.6 mA and 23 mA, thus providing the
flexibility needed to meet the requirements of various control systems.

 Copyright 2006 Pyromation, Inc., All rights reserved.

• FAX [phone] or [phone] • www.pyromation.com 442-D

Sensor

Pt100 (RTD)

6.4 Quick Setup

The head transmitter left the factory with a default parameter configuration. If no customer specific configuration was mentioned on
the order then the default parameter configuration is constructed as follows:

Connection mode 3-wire
Measurement range and units (0 to 100) °C

Using the Quick Setup the operator is led through all the most important unit functions that must be setup for standard
measurement operation of the unit. Using the HART hand module a quick set-up of the black highlighted fields of the HART
function matrix (see figure 6-2) is possible.

• Type of sensor (V2H0)

• Unit meas. Value (V2H2)

• Value of 4 mA (V2H4)

• Value of 20 mA (V2H5)

• Connection (V2H6)

6.5 Configuration with HART protocol

Selection of all head transmitter functions using the HART hand module is done with various menu levels with the help of the
Pyromation function matrix (see figure 6-2). All head transmitter functions are described in 6.6, Description of unit functions.

What needs to be done:

1. Switch on the hand module:

- Measurement unit is not yet connected. The HART



main menu appears. This menu level appears for all HART
programming independent of the type of instrumentation. Information to offline programming can be found in the
“Communicator DXR 275/375 operating manual.

- Measuring unit is connected. The menu level “Online” appears. In this “Online” menu level the actual measured data such
as measured value (PV) and output current (AO) are continuously displayed. Entry into the Series 442 operating matrix is
done using the line “Matrix parameters”. This matrix systematically contains all HART



accessible functions.

2. Using “Matrix parameters” the function group can be selected (e.g. basic calibration) and then followed by the required
function, e.g. “Sensor input”.

3. Enter numeric values or change settings. Then acknowledge using the F4 “Entry” function key.

4. “SEND” appears when operating the F2 function key. Once the F2 key has been operated all values entered in the hand
module are transmitted to the Series 442 measurement system.

5. A return to the “Online” menu level is made using the F3 “HOME” function key. Here, the actual transmitter values measured
with the new settings can be read.

Figure 6-1 Configuration at the hand module example “Sensor input”

4 of 11 Phone [phone]

• FAX [phone] or [phone] • www.pyromation.com 442-D

 Copyright 2006 Pyromation, Inc., All rights reserved.