TC308 Instruction Manual
Powtier Controls Limited
TECHNICAL SPECIFICATION
INPUT
Thermocouple Standard
ASTM E230, BS4937
DIN 43710.
Cold junction
Automatic.
Compensation
Thermocouple break
Upscale (heat O/P) or
protection
downscale (cool O/P) fitted
as standard;
display shows -.-.
Resistance Thermometer
Lead resistance error is
2 or 3 wire
automatically reduced
by using 3 wires.
RTD (Pt 100)
BS 1904, DIN 43760.
OUTPUTS
Relay
5A resistive at 230V rms.
Logic output
Non-isolated 10mA 12V dc.
Triac output
1A or 13A at 230 Vrms.
Power feedback
To stabilise output against
line voltage variation.
CONTROL
PD control
Proportional and derivative.
Proportional band Xp
1% to 10% of span.
Self-adjusting prop. Bnad
0.5% to 10% when setpoint
at span; 2% to 20% when
setpoint at mid-span.
Derivative time td
4 to 20 seconds, correspond
to heat cycle time.
Manual reset
0 to 50% output power at
span.
ALARM OUTPUTS OPTIONS
Relay
2A resistive at 230 Vrms.
High alarm
0 to 20% of span.
Low alarm
0 to 20% of span.
Band alarm
0 to 20% of span.
ENVIRONMENTAL
Supply voltage
115/230V +/-15% 50/60Hz
100/200V +10% -15%
50/60Hz.
Operating temperature
0 to 50 Deg.C.
PERFORMANCE
Indication accuracy
Better than 0.5% of span
+/-1 digit.
Supply voltage variation
Negligible effect.
GENERAL
Display digit
3 or 31/2 digits.
Display
7 segment and negative
sign display; digit size
13mm height by
7.4mm width.
Error indication
3 LED display; upper LED
+1% of span, lower LED
-1% of span.
Dimensions
96x96x125mm.
Panel cut out dimensions
92x92mm.
Weight
750g maximum.
Power consumption
6VA maximum.
ORDERING INFORMATION
You are welcome to order by description or code.
308 -
-
-
-
-
- 00
INPUT...................|.........|.........|.........|.........|.........|
SCALE............................|.........|.........|.........|.........|
OUTPUT..................................|.........|.........|.........|
SUPPLY VOLTAGE............................|.........|.........|
OPTIONS.....................................................|.........|
END OF CODE......................................................|
INPUT
Iron-Constantan (J) BS
-50 to 500
10
Fe-Konst (J) DIN
-50 to 500
30
Chromel Alumel (K)
-50 to 500
20
0 to 999
23
0 to 1200
21
Resistance Thermometer (PT100)
-50 to 200
40
SCALE
Degree Celsius .........C
Degree Fahrenheit.....F
OUTPUT
Heat (or cool) output
relay................................10[or 11]
logic................................20[or 12]
triac 1A...........................30[or 13]
triac 13A (3KW)..............40[or 14]
SUPPLY VOLTAGE
115/230V +/-15% 50/60Hz..............1
100/200V +10% -15% 50/60Hz.......2
OPTIONS
Alarm
low deviation............................................21
high deviation..........................................22
END OF CODE......................................................00
Please consult Sales office for other possible options
and scales.
ORDER EXAMPLE:
A TC308 with J-type thermocouple input, scaled -50
to 500 °C, relay heat output, operating at 230V and
without any option will have the code:-
308-10-C-10-1-00.
SUPPLIER INFORMATION
Powtier Controls Limited
Unit 4, Parkland Business Centre
Chartwell Road, Lancing
West Sussex BN15 8UE England
Tel: +44(0)1903 750800
Fax: +44(0)1903 750678
Email:
22 November 1994
- 4 -
308IM
Issue 2.0
