| BRAINCHILD ELECTRONIC CO.,LTD. |
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Item Number:
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Product Name:
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BTC-704 72 x 72 mm knob setting digital display controller |
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Description:
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These analog controllers are used for simple applications with on/off or P control, BTC-701 without indication, BTC-702 with deviation indication and BTC-704 with digital display.
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Features:
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Build-in Laser Trim ASIC
Easy to change range
ON-OFFor time proportional selectable
Compact, only 65mm in depth
Wide selection of control output option
Wide selection of ranges
Sensor break protection
Alarm option (BTC-704,BTC-702 Only)
Low Cost
Safety : UL, CSA
EMC, LVD : CE |
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Specification:
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INPUT
Thermocouple (T/C): Type J, K
RTD : 3-wires PT 100 ohms, DIN or JIS
Range : See ordering information
Accuracy : ¡Ó2% of span (BTC-702, BTC-701), ¡Ó1% of span (BTC-704)
Cold Junction Compensatin : ¡Ó0.1¢XC /1 ¢XC
Rejection of RTD Lead Resistance = ( 0.1¢XC - 0.025% of PV reading) / ohm
Sensor Break Protection : Upscale
External Resistance : 100 ohms max.
Normal Mode Rejection : 60 dB
Common Mode Rejection : 120 dB
Sample Rate : 3 times / second
CONTROL
Proportional Band : 2.2% of span
ON-OFF Hysteresis : 1 % of span
Cycle Time : 20 seconds for relay output, 1 second for pulsed voltage output,
???????????????????0.02 second for linear current or voltage output.
Control Action : Reverse action
OUTPUT
Control : Relay 5A / 240V max. resistive load
Pulsed Voltage: 20mA / 32VDC max.
Current: 4-20mA, 0-20mA, max. load 500 ohms
Voltage: 0- 10V, min. load 500k ohms
Alarm : Relay output, 2A / 240VAC max. resistive load
ADJUSTMENT
Set point: Single turn wirewound potentiometer
Alarm : Deviation alarm, adjustable ¡Ó10% of span
Manual Reset: Adjustable 2.6% of span (BTC-704, 702 only)
Resolution of set point: 0.2% of span
Accuracy of set point: ¡Ó2% of span
Repeatability of set point: ¡Ó0.1 % of span
INDICATION
Process Indicator: BTC-702 : Deviation meter
????????????????????????????BTC-704:
10mm red 3-1/2 dight LED display
Status Indicator: ON ( red ) LED Lamp
Alarm Indicator : ON (red) LED Lamp
POWER
Rating: 90-240VAC, 50 / 60 Hz
Consumption: Less than 5VA
ENVIRONMENTAL & PHYSICAL
Operating Temperature: 0-50¢XC
Humidity: 0-90% RH (non-condensing)
Insulation: 20M ohms min. (500VDC)
Breakdown: AC 2000V, 50 / 60Hz, 1 minute
Vibration: 10-55Hz. amplitude 1 mm
Shock: 200m/s2 (20g)
Weight: BTC-704: 240 grams, BTC-702: 320 grams, BTC-701: 290 grams
Dimension: 72(W)X72(H)X65mm (depth behind panel)
Panel cutout: 68 X 68mm
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Other
Description:
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BTC704 - □□□□□□□□
??????????????????1???2???3???4???5???6???7???8???
1???? Power Input
???????????????4:
90-240VAC
???????????????5:
12-36VAC, 50Hz/60Hz / 16-48VDC
???????????????9:
Other
2???? Signal Input
???????????????1:
Type J thermocouple
???????????????2:
Type K thermocouple
???????????????3:
PT 100 ohm DIN
???????????????4:
PT 100 ohm JIS
???????????????9:
Other
3????Range Code
Code |
Range |
Code |
Range |
Selected Solder GAP |
2 |
0 ~ 100¢XC |
A |
50 ~ 20¢XF |
J3 |
3 |
0 ~ 200¢XC |
B |
50 ~ 40¢XF |
J4 |
4 |
0 ~ 300¢XC |
C |
50 ~ 55¢XF |
J5 |
5 |
0 ~ 400¢XC |
D |
50 ~ 750¢XF |
J6 |
* |
* |
E |
50 ~ 850¢XF |
J7 |
6 |
0 ~ 600¢XC |
F |
50 ~ 1100¢XF |
J8 |
7 |
0 ~ 800¢XC |
G |
50 ~ 1400¢XF |
J9 |
8 |
0 ~ 1200¢XC |
H |
*0 ~ 2200¢XF |
J10 |
9 |
Other |
K |
50~199.9¢XF |
* |
* |
* |
L |
0~99.9¢XC |
* |
* |
* |
M |
0~199.9¢XC |
* |
* Range K.L.M available for BTC-704 only
4????Control Mode
Code |
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
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