Brainchild Electronic Co., Ltd
Brainchild Electronic Co., Ltd. was established in 1977. Presently we are the largest temperature controller maker in Taiwan, and the only maker of paperless recorder in Taiwan. The factory has a full automatic SMT production line. TÜV Rheinland certified our ISO9001 once a year. In addition we have a well equipped and CSA certified laboratory to do CSA, UL and CE tests. A strong and experienced R&D team is allowed us to offer customers innovative and state-of-art industrial instruments for various FA solutions. We have won good reputation by supplying quality instruments with better features at competitive prices. It is our philosophy in pursuit of perfection through continuous improvement. In order to supporting our customers with more industrial instruments and becoming an important vendor in FA solutions, we have continued investing on new products. Now we have five product lines including Human Machine Interfaces, Recorders, Temperature Controllers, Data Acquisition Modules / Distributed IO Modules, and Networking products. The sales network of both distributors and private labeled customers cover over 80 countries.

L91 , 48 x 48 mm Safety limit controller

Categories > Temperature Controllers > Safety limit controllers > 48 x 48 mm Safety limit controller

Product Name:

48 x 48 mm Safety limit controller

Features:

The limit control L91 is an over temperature or a high limit safety device with a latching output that could remove the power while the process is in abnormal condition, for example the process higher than high limit set point or lower than the low limit set point.

As a professional and experienced manufacturer, we supply high-performance and quality temperature controllers, which are also called temperature control, electronic temperature control, electronic temperature controller, and PID controller.

Specification:

Power
90 - 264 VAC, 49 - 63 Hz, 10VA, 5W maximum
11 - 26 VAC / VDC, SELV, Limited Energy, 10VA, 5W maximum

Input
Resolution : 18 bits
Sampling Rate : 5 times / second
Maximum Rating : -2 VDC minimum, 12 VDC maximum( 1 minute for mA input )
Temperature Effect : ±1.5 uV/ °C
Sensor Lead Resistance Effect :
   T/C: 0.2uV/ohm
   3-wire RTD: 2.6 °C/ohm of resistance difference of two leads
   2-wire RTD: 2.6 °C/ohm of resistance sum of two leads
Burn-out Current : 200nA
Common Mode Rejection Ratio ( CMRR ) : 120dB
Sensor Break Detection :
   Sensor open for TC, RTD and mV inputs,
   below 1 mA for 4-20 mA input,
   below 0.25V for 1 - 5 V input, unavailable for other inputs.
Sensor Break Responding Time :
   Within 4 seconds for TC, RTD and mV inputs,
   0.1 second for 4-20 mA and 1 - 5 V inputs.

Characteristics :

Type	Range	Accuracy@ 25 °C	Input Impedance
J	-120 ~ 1000 °C (-184 ~ 1832 °F)	±2 °C	2.2MΩ
K	-200 ~ 1370 °C (-328 ~ 2498°F)	±2 °C	2.2MΩ
T	-250 ~ 400°C (-418 ~ 752°F)	±2 °C	2.2MΩ
E	-100 ~ 900 °C (-148 ~ 1652 °F)	±2 °C	2.2MΩ
B	0 ~ 1820 °C (32 ~ 3308 °F)	±2 °C (200°C - 1820°C)	2.2MΩ
R	0 ~ 1767.8 °C (32 ~ 3214 °F)	±2 °C	2.2MΩ
S	0 ~ 1767.8 °C (32 ~ 3214 °F)	±2 °C	2.2MΩ
N	-250 ~ 1300 °C (-418 ~ 2372 °F)	±2 °C	2.2MΩ
L	-200 ~ 900 °C (-328 ~ 1652 °F)	±2 °C	2.2MΩ
PT100 (DIN)	-210 ~ 700 °C (-346 ~ 1292 °F)	±0.4°C	1.3KΩ
PT100 (JIS)	-200 ~ 600 °C (-328 ~ 1112 °F)	±0.4°C	1.3KΩ
mV	-8 ~ 70mV	±0.05%	2.2MΩ
mA	-3 ~ 27mA	±0.05%	70.5Ω
V	-1.3 ~ 11.5V	±0.05%	510KΩ

Event Input
Logic Low: Logic -10V minimum, 0.8V maximum.
Logic High: 2V minimum, 10V maximum.
Functions: Remote reset, remote lockout.

Output 1 / Output 2
Relay Rating : 2A/240 VAC, life cycles 200,000 for resistive load
Pulsed Voltage : Source Voltage 5V, current limiting resistance 66Ω .

Triac ( SSR ) Output
   Rating : 1A / 240 VAC
   Inrush Current : 20A for 1 cycle
   Min. Load Current : 50 mA rms
   Max. Off-state Leakage : 3 mA rms
   Max. On-state Voltage : 1.5 V rms
   Insulation Resistance : 1000 Mohms min. at 500 VDC
   Dielectric Strength : 2500 VAC for 1 minute

DC Voltage Supply Characteristics ( Installed at Output 2 )

Type	Tolerance	Max. Output Current	Ripple Voltage	Isolation Barrier
20V	±1 V	25 mA	0.2 Vp-p	500 VAC
12V	±0.6 V	40 mA	0.1 Vp-p	500 VAC
5V	±0.25 V	80 mA	0.05 Vp-p	500 VAC

Data Communication
Interface : RS-232 ( 1 unit ), RS-485 ( up to 247 units )
Protocol : Modbus Protocol RTU mode
Address : 1 - 247
Baud Rate : 0.3 ~ 38.4 Kbits/sec
Data Bits : 8 bits
Parity Bit : None, Even or Odd
Stop Bit : 1 or 2 bits
Communication Buffer : 50 bytes

User Interface
4-digit LED Displays : 0.4" (10mm),
Keypad : 4 keys
Programming Port : For automatic setup, calibration and testing
Communication Port : Connection to PC for supervisory control

Limit Control
High Limit, Low limit and High/Low Limit programmable

Digital Filter
Function : First order
Time Constant : 0, 0.2, 0.5, 1, 2, 5, 10, 20, 30, 60 seconds programmable

Environmental & Physical
Operating Temperature : -10°C to 50°C
Storage Temperature : -40°C to 60°C
Humidity : 0 to 90 % RH ( non-condensing )
Insulation Resistance : 20 Mohms min. ( at 500 VDC )
Dielectric Strength : 2000 VAC, 50/60 Hz for 1 minute
Vibration Resistance : 10 - 55 Hz, 10 m/s² for 2 hours
Shock Resistance : 200 m/s² ( 20 g )
Moldings : Flame retardant polycarbonate
Dimensions : 48mm(W) X 48mm(H) X 94mm(D), 86 mm depth behind panel

Weight : 150 grams

Approval Standards
Safety : FM Class 3545 (Oct. 1998), UL873 ( 11'th edition, 1994 ) , CSA C22.2 No. 24-93 , EN61010-1 (IEC1010-1)
Protective Class :
IP30 front panel, indoor use,
IP20 housing and terminals ( with protective cover)
EMC : EN61326

Other Description:

L91 - □□□□
1 2 3 4

1     Power Input
               4: 90 - 264 VAC, 47-63 HZ
               5: 11 - 26 VAC or VDC, SELV, Limited Energy

2     Signal Input
               1: Standard Input
                         Thermocouple: J, K, T, E, B, R, S, N, L
                         RTD: PT100 DIN, PT100 JIS
                         mV: 0 - 60mV

               2: Voltage 0-1 V
               3: Voltage 0-10 V
               4: Current 0-20 mA
               9: Special Order

3    Output 1
               0: None
               1: Form C relay rated 2A/240VAC
               2: Pulsed voltage to drive SSR, 5V / 30mA
               6: Triac output 1A / 240VAC,SSR
               C: Pulsed voltage to drive SSR, 14V/40mA
               9: Special order

4    Output 2
               0: None
               1: Form A relay 2A / 240VAC
               2: Pulsed voltage to drive SSR, 5V / 30mA
               6: Triac output, 1A / 240VAC, SSR
               7: Isolated 20V/25mA DC Output Power Supply
               8: Isolated 12V/40mA DC Output Power Supply
               9: Isolated 5V/80mA DC Output Power Supply
               A: RS-485
               B: Event input
               C: Pulsed voltage to drive SSR, 14V/40mA
               D: Retransmit 4-20mA / 0-20mA
               E: Retransmit 1-5V / 0-5V
               F: Retransmit 0-10V
               H: Special order

This is the detailed information for 48 x 48 mm Safety limit controller, L91. The information includes model, name, description and specification for 48 x 48 mm Safety limit controller, L91. Related Keywords : Safety limit controller

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