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gefran 4T72 User Manual

Universal temperature indicator

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1 • INSTALLATION
• Dimensions and cut-out: Panel mounting
76
72
36
54
8
Panel mounting:
Fix the device with the bracket provided before making any electrical connections.
To mount two or more devices side by side, use the cut-out dimensions shown above.
CE MARKING: The instrument conforms to the European Directives 2004/108/CE and
2006/95/CE with reference to the generic standards: EN 61000-6-2 (immunity in industrial
environment) EN 61000-6-3 (emission in residential environment) EN 61010-1 (safety).
MAINTENANCE: Repairs must be done out only by trained and specialized personnel.
Cut power to the device before accessing internal parts.
Do not clean the case with hydrocarbon-based solvents (Petrol, Trichlorethylene, etc.).
Use of these solvents can reduce the mechanical reliability of the device. Use a cloth
dampened in ethyl alcohol or water to clean the external plastic case.
SERVICE: GEFRAN has a service department. The warranty excludes defects caused
by any use not conforming to these instructions.
81606B_MHW_4T72_0609_ENG
4T 72
UNIVERSAL TEMPERATURE INDICATOR
83
30
69,5
For correct and safe
installation, follow the
instructions and
observe the warnings
contained in this
manual.
USER'S MANUAL
SOFTWARE VERSION 1.0x / 2.0x
code 81606B / edition 06 - 06/09
2 • TECHNICAL SPECIFICATIONS
Display
Keys
Accuracy
Resolution
(function of settable sample time)
Main input
Thermocouples
43
Cold junction error
RTD type (scale configurable within indicated
range, with or without decimal point)
Max. RTD line resistance
PTC type / NTC type
Max. non-linearity error
°C / °F selection
Linear scale ranges
(option) Power supply for 2-
wire transmitter
Power supply (switching)
Faceplate protection
!
Working / Storage temperatures
Relative humidity
Installation
Weight
EMC conformity has been tested with the following connections
FUNCTION
TC input probe
"PT100" input probe
Power supply cable
2, 3, 4 digits, red, height 14 mm
3 mechanical keys (Raise, Lower, F)
0.2% f.s. at 25°C ambient temperature, ts=120msec
120msec, >13bit - 8000 points
60msec, >13bit - 8000 points (only for linear inputs)
30msec, >12bit - 4000 points (only for linear inputs)
15msec, >11bit - 2000 points (only for linear inputs)
TC, RTD, PTC, NTC
60 mV, 1 V, 5 V, 10 V, Ri ≥ 500KΩ
20 mA, Ri = 50Ω
adjustable digital filter
J, K, R, S, T, B, E, N
(IEC 584-1, CEI EN 60584-1, 60584-2)
L GOST, U, G, D, C
Custom linearization available on request
0,1° / °C
DIN 43760 (PT100), JPT100
20Ω
990Ω, 25°C / 1KΩ, 25°C
See t.P parameter at page 3
Faceplate configurable
-1999 to 9999 (with 4 digit display)
-999 to 999 (with 3 digit display)
-99 to 99 (with 2 digit display)
Configurable decimal point position, possible 32
segment linearization
18V ±10%, 30 mA
1.2 V DC for potentiometer > 100 Ω (version P77)
11...27 V DC, 18...27VAC ±10%,
50/60Hz, 3VA (not isolated)
IP65
0...50°C / -20...70°C
20 to 85%, non-condensing
Panel mounting
90g for the complete version
CABLE
LENGTH USED
0,8 mm
2
compensated 5 mt
1 mm
2
3 mt
1 mm
2
1 mt
1

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Summary of Contents for gefran 4T72

  • Page 1 Use of these solvents can reduce the mechanical reliability of the device. Use a cloth dampened in ethyl alcohol or water to clean the external plastic case. EMC conformity has been tested with the following connections SERVICE: GEFRAN has a service department. The warranty excludes defects caused FUNCTION CABLE LENGTH USED by any use not conforming to these instructions.
  • Page 2: Description Of Front Panel

    3 • DESCRIPTION OF FRONT PANEL “Raise” and “Lower” keys: These keys are used for any operation that requires a numerical parameter to be raised or lowered. •• PV display: Indication of process variable The speed of change is proportional to the time the Indication of ‘HI’...
  • Page 3 • Information display Information display Software version Display the type of CPU board (thermocouples/linear) • TC/LIN input parameters Input settings Type Type 4 DIGIT 3 DIGIT + sign 2 DIGIT + sign PROBE without dec. point with dec. point without dec. point with dec.
  • Page 4 • Custom Linearization Custom Linearization of main input 120ms > 13bit; 8000 divs Select sampling time 60ms > 13bit; 8000 divs (resolution). 30ms > 12bit; 4000 divs For linear input only. 15ms > 11bit; 2000 divs Step 0 Display limits (beginning of scale value) (-1999 to 9999 for 4 digit display) +4 to disable filter...
  • Page 5 • Filter - outputs with reference to parameters F.0 and r.A The diagrams refer to a normal absolute alarm with hysteresis H = 0 F.0 = 2 F.0 = 1 DBI = Delay in turning on output after output is DON = Delayed activation turned off Alarm...
  • Page 6: Order Code

    VAC. Resistors must be at least 2W); fit a 1N4007 diode in parallel with the coil of inductive loads that operate in DC. GEFRAN spa will not be held liable for any injury to persons and/or damage to property deriving from tampering, from any incorrect or erroneous use, or from any use not conforming to the device specifications.
  • Page 7 Gefran 4T 72 Installation Manual: Temperature Indicator www.thermon.co.za CPT: +27 21 762 8995 JHB: +27 11 966 9800...