PCE Instruments PCE-P18 Manuel utilisateur
1
PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: (561) 320-9162
Fax: (561) 320-9176
www.pce-instruments.com/us
www.industrial-needs.com
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: (0) 2380 98703 0
Fax: (0) 2380 98703 9
www.pce-instruments.com/english
USER’S MANUAL
TEMPERATURE
AND HUMIDITY
TRANSDUCER
PCE-P18
2
3
Contents
1. APPLICATION............................................................................... 5
2. TRANSDUCER SET ..................................................................... 7
3. BASIC REQUIREMENTS, OPERATIONAL SAFETY .................. 7
4. INSTALLATION............................................................................. 7
4.1. Way of fixing ........................................................................... 7
4.2. External connection diagrams ................................................ 9
5. SERVICE..................................................................................... 11
5.1. Power-on messages of the P18D transducer ...................... 11
5.2. Description of the P18D transducer readout field................. 12
5.3. Functions of the P18D transducer capacitive button............ 13
5.4. Programming parameters menu of the P18D transducer..... 14
5.5. Functions of the P18(D) transducer...................................... 15
5.5.1. Calculated values .............................................................. 16
5.5.2. Selection of controlling values for analog outputs ............. 16
5.5.3. Individual characteristic of analog outputs......................... 17
5.5.4. Support of a sensor heater................................................ 19
5.5.5. Default settings.................................................................. 20
6. RS-485 INTERFACE................................................................... 21
6.1. Connection of the serial interface......................................... 21
6.2. Description of the MODBUS protocol implementation.......... 23
6.3 Description of the functions used .......................................... 23
6.4 Map of the registers............................................................... 26
6.5 Registers for writing and readout........................................... 27
6.6 Registers for readout............................................................. 33
6.7 Emergency restoration of default parameters ....................... 36
7. ERROR CODES.......................................................................... 37
8. ACCESSORIES .......................................................................... 38
9. TECHNICAL DATA ..................................................................... 39
10. ORDERING CODE.................................................................... 41
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5
1. APPLICATION
Fig. 1. Overview of the P18 and P18D transducers with the probe
on the housing.
The PCE-P18 transducers are the devices destined for
the continuous measurement and conversion of relative
humidity and ambient temperature into a digital form and
into a voltage or cur-rent standard signal. The
transducers are fixed on a wall. Programming of the
transmitters is possible via the RS?-485 interface. LPCon
or eCon software designed for configuration of the
transducers is available on the manufacturer’s website:
www.pce-instruments.com. Applied sensor shields
enable the application of the transducers in various
ambient conditions.
6
Fig. 2. Overview of the P18 and P18D transducers with the probe
on the wire 0,5 m.
7
2. TRANSDUCER SET
Transducer 1 pc
User’s manual 1 pc
Warranty card 1 pc
3. BASIC REQUIREMENTS,
OPERATIONAL SAFETY
In terms of operational safety, the transducer meets
the requirements of the EN 61010-1 standard.
−
−
−
4. INSTALLATION
4.1. Assembly
The P18(D) transducer is designed to be mounted on a wall by
means of a screw connection or glue without the loss of IP65 tightness.
The transducer housing is made of a self-extinguishing plastics. The trans-
ducer has screw connectors placed inside the transducer, which enable
the connection of external wires of 1 mm2cross-section.
Comments concerning safety
Assembly and installation of the electrical connections should
conducted only by people authorised to perform assembly of elec-
tric devices.
Always check the connections before turning the transducer on.
The transducer is designed to installation and usage in the indu-
strial electromagnetic environment.
•
•
•
8
Fig. 3. Overall dimensions of the P18(D) transducer
Fig. 4. Lay-out of mounting holes of the P18(D) transducer
mounting holes
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4.2. External connection diagrams
The P18(D) transducer version P18(D)-1XXX or P18(D)2XXX
has 8 connecting terminals, version P18(D)-0XXX has 4 terminals (ver-
sion without analog outputs). Access to the terminals is possible after
removing the cover of the transducer housing. You should use a multi-
conductor round wire with external diameter from 3.5 mm up to 6 mm
for electrical connections. Remove the display prior to connecting the
wires in a screw terminal of the P18D transducer. Pass supplying wi-
res through the packing and twist the packing seal in order to obtain
the leaktightness. If the packing seal is not twisted, the required IP 65
leaktightness is not ensured. The LCD display should be put back after
screwing the wires to the screw terminal of the P18D transducer.
Fig. 5. Marking of the terminals for the connection of external signals
of the P18(D) transducers in versions: a) without analog outputs,
b) with analog outputs.
a) b)
10
Transducer without
analog outputs
Transducer with current
outputs
Transducer with voltage
outputs
Use shielded cable for supply and output signals in environ-
ments with high levels of interference. The shield must be connected
to the nearest PE point from the feeder side.
OutOut
12
1
Out
2
Out
Fig. 6. Wiring diagram of the P18(D) transducer with analog outputs
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