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BTC-901 Analogue Controller
BTC-901 Analogue Controller - Side View
BTC-901 - Image 3
Click to enlarge
BTC-901 Analogue Controller
BTC-901 Analogue Controller - Side View
BTC-901 - Image 3

BTC-901 – 48 x 48 mm Analogue Controller

Brand:

$190.00 Excl. GST

Model *

Signal Input *

Range *

Total: $190.00

All prices are in NZ$, and GST exclusive and are subject to change without notice.

Product Details

Analogue Temperature Controller

BTC-901 is a cost-effective analogue temperature controller in a 1/16 DIN (48×48mm) compact housing. Designed for simple and reliable control, it features an easy-to-use analogue dial, ON/OFF or time proportional control, and relay alarm output. With support for thermocouple or RTD input, BTC-901 is ideal for applications requiring stable, low-cost temperature regulation in compact panels.

BTC-901 Front Panel and LED Indicators

The BTC-901 features a compact 48×48mm panel with a front-mounted analogue potentiometer dial for setpoint adjustment. Two LED status indicators provide instant feedback: red for output ON and green for output OFF. This simple interface enables users to quickly monitor control status and adjust the temperature without complex menus or digital setup. It’s ideal for operators who prefer tactile controls in industrial environments.

Supports thermocouple and RTD sensors with accuracy

BTC-901 accepts inputs from thermocouple (Type J or K) or RTD PT100 (DIN or JIS) sensors. Sensor type and range are selected via internal jumper settings. The controller ensures accurate measurement performance with cold junction compensation for thermocouples and stable RTD signal processing. This flexibility makes BTC-901 suitable for various heating and temperature monitoring applications.

BTC-901 Features:

  • Analogue dial for quick temperature setting
  • Input: Thermocouple (J/K) or RTD (PT100)
  • 48×48mm compact panel mount size
  • Red and green LED status indicators
  • Sensor break protection with relay off
  • Ideal for cost-effective temperature control
  • Jumper-based control mode configuration
  • Deviation alarm relay output included

Technical Specs

INPUT
Thermocouple (T/C)Type J, K
RTD3-wires PT 100 ohms, DIN or JIS
RangeSee ordering information
Accuracy±2 %of span
Cold Junction Compensatin±0.1°C / 1°C
Rejection of RTD Lead Resistance( 0.1°C - 0.025% of PV reading) / ohm
Sensor Break ProtectionUpscale
External Resistance 100 ohms max.
Normal Mode Rejection60 dB
Common Mode Rejection120 dB
Sample Rate3 times / second
CONTROL
Proportion Band2.2% of span
ON-OFF Hysteresis 1 % of span
Cycle Time20 seconds for relay output, 1 second for pulsed voltage output, 0.02 second for linear current or voltage output.
Control ActionReverse action
OUTPUT
ControlRelay 5A / 240V max. resistive load
Pulsed Voltage20mA / 32VDC max.
Current4-20mA, 0-20mA, max. load 500 ohms
Voltage0- 10V, min. load 500k ohms
ADJUSTMENT　
Set pointSingle turn wirewound potentiometer
Resolution of set point0.2% of span
Accuracy of set point±2%of span
Repeatability of set point±0.1 span
INDICATION
Process IndicatorBTC-902 : HI/LO LED indicators, 
BTC-901 : None
Status IndicatorON (red) LED Lamp, 
OFF (green) LED Lamp
POWER
Rating100-130VAC or 200-240VAC, 50/60Hz
ConsumptionLess than 5VA
ENVIRONMENTAL & PHYSICAL
Operating Temperature0-50°C
Humidity0 to 90% RH (non-codensing)
Insulation20M ohms min. (500VDC)
BreakdownAC2000V，50/60Hz，1 minute
Vibraton10-55Hz，amplitude 1mm
Shock200 m/s² (20g)
WeightBTC-901: 240 grams, 
BTC-902: 270 grams
Dimension48(W)X48(H)X86mm (depth behind panel)
Panel cutout45 X 45mm

Ordering Information

BTC-901-(1)-(2)-(3)-(4)-(5)-(6)-(7)-(8)
Type Code Specification
(1) Power Input 1 100-130VAC, 50Hz/60Hz
2 200-240VAC, 50Hz/60Hz
(2) Signal Input 1 Type J thermocouple
2 Type K thermocouple
3 PT 100 ohm DIN
4 PT 100 ohm JIS
9 Other (specify)
(3) Range Code Selected Solder GAP
2 0~100°C A 50~20°F J3
3 0~200°C B 50~40°F J4
4 0~300°C C 50~55°F J5
5 0~400°C D 50~750°F J6
E 50~850°F J7
6 0~600°C F 50~1100°F J8
7 0~800°C G 50~1400°F J9
8 0~1200°C H 0~2200°F J10
9 Other *
(4) Control Mode J11
1 ON-OFF Short
2 P (proportional) Open
(5) Output I 1 Relay, rated 5A/240VAC resistive
2 Pulsed voltage to drive SSR, rated 20mA/24V
3 4-20mA linear, max. load 500 ohms
4 0-20mA linear, max. load 500 ohms
5 0-10V linear, min. load 500k ohms
9 Other
(6) Output II 0 None
(7) Alarm 0 None
1 Deviation alarm relay output,
rated 2A/24OVAC max. resistive load
(8) Communication 0 None 200-240VAC, 50Hz/60H

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