Specifications Display
Digital display: 7 segments /Measured value (PV)Green LED 4 digits,Set value (SV)Orange LED 4 digits
Parameter display: By 7 segment LEDs for PV and SV
Action display /colors: 3-type LED lamp indication • Control output ((OUT)/Green
• Auto tuning ((AT)/Green
• Alarm ((AH and AL /HB)/Red
Display accuracy: ±(0.5%FS+1 digit)excluding cold junction temperature compensation
accuracy in the case of the thermocouple input.
±5%FS for temperatures below 400 °C (750 °F)of thermocouple B.
Display accuracy range: 23 ±5 °C
Display resolution: Depends on measuring range (0.1,1)
Measured value display range: -10~110%of measuring range
(-210~680 °C for -200~600 °C of R.T.D.input)
Sampling cycle: 0.5 sec.
Setting
Setting: By 4 front key switches
Setting range: Same as the measuring range.Refer to Table of Measuring Range Codes.
Input
Type of input /measuring range: Thermocouple,R.T.D.and voltage (mV)input types:Multi-input,Multi-range
Refer to Table of Measuring Range Codes.
Voltage (V)and current (4~20mA)input types:by code selection
Thermocouple: B,R,S,K,E,J,T,N {U,L (DIN 43710)}
External resistance: 100 Ohm max.
Input impedance: 500k Ohm min.
Burnout: Standard feature (up scale)
Cold junction temperature compensation accuracy: ±2 °C (5~45 °C)
R.T.D.: JIS Pt100 /JPt100 3-wire type
Amperage: Approx.0.25mA
Lead wire tolerable resistance: 5 Ohm max./wire (The 3 lead wires should have same resistance.)
Voltage: 0~10,10~50,0~100mV DC or 0~1,1~5,0~10V DC
Input impedance: 500k Ohm min.
Current: 4~20mA DC
Receiving impedance: 250 Ohm
Sampling cycle: 0.5 sec.
PV bias: ±20.0 unit in case the decimal point is included in the measuring range. If not,±200 unit.
PV filter: 0~100 sec.(0 =without filter)
Isolation: Insulated between input and output (not insulated between input and system,
SV bias and CT input) Control
Control mode: Auto-tuning PID control /On-Off control
Proportional band (P): Off,0.1~999.9%FS (Off setting:On-Off action)
Integral time (I): 1~6000 sec.
Derivative time (D): 0~3600 sec.(0 sec.setting:PI action)
On -Off hysteresis: 1~999 unit
Proportional cycle: Fixed to 20 sec.during contact output
Fixed to 2 sec.during SSR drive voltage output
Control output characteristics: RA /DA selectable (set RA when shipped)
Set value function (SF): Off (Off =0.00)and 0.01~1.00
Control output type /rating
Contact output (Y1): SR71:240V AC 2A /resistive load:1.2A /dielectric load
SR72,SR73 and SR74:240V AC 2.5A /resistive load:1.5A /dielectric load
Current output (I1): 4~20mA DC /load resistance:600 Ohm max.
SSR drive voltage output (P1): 15 ±3V DC (with load resistance at 1.5k Ohm)/load current:20mA maximum
Voltage output (V1): 0~10V DC /load current:2mA maximum
Isolation: Isolated between control output and system and input Others
Data storage: By non-volatile memory (EEPROM)
Operating ambient temperature/humidity range: -10~50 °C /90%RH max.(no dew condensation)
Data storage temperature: -20~+65 °C
Supply voltage: 100~240V AC ±10%(50 /60 Hz)
Power consumption: Approx.11VA
Input noise eliminating ratio: Normal mode:60dB min.(50 /60Hz)
Common mode:130dB min.(50 /60Hz)
Applicable standard: Safety:IEC1010-1
EMC EMI (emission):EN50081-1
EMS (immunity):EN50082-2
Insulation resistance: Between the input /output terminal and the power supply terminal:500V DC 20M Ohm minimum Between the input /output terminal and the ground terminal:500V DC 20M Ohm minimum
Dielectric strength: 1 min.at 2300V AC between the input /output terminal and the power supply
terminals
1 min.at 1500V AC between the power supply terminal and the ground
terminal
Protective structure: Only front panel has simple dust-proof and drip-proof structure
Material: PPO resin molding (equivalent to UL94V-1)
External dimensions: SR71:H48 ×W48 ×D110 (panel depth:100)mm
SR72:H72 ×W72 ×D110 (panel depth:100)mm
SR73:H96 ×W96 ×D110 (panel depth:100)mm
SR74:H96 ×W48 ×D110 (panel depth:100)mm
Mounting: Push-in panel (one-touch mount)
Panel thickness: 1.0~3.5 mm
Panel cutout: SR71:H45 ×W45mm, SR72:H68 ×W68mm,
SR73:H92 ×W92mm, SR74:H92 ×W45mm
Weight: SR71:Approx.180g, SR72:Approx.260g,
SR73:Approx.330g, SR74:Approx.250g
Low Cost:
From.....$139.00
Standard Features:
• Multi-input and multi-range performance
• Includes a new processing system, Expert PID, remarkably improved PID control efficiency; overshoot and undershoot are controlled effectively.
• The keylock function can avoid erroneous operation resulting from set values or parameter settings.
• The PV bias function can correct errors caused by sensor input.
• A wide selection of additional functions (optional) is available to suit various needs.
