RET-37-S-220 ▪︎ Horizontal Case Economic Temperature Controller

NOTICE: This product is part of our old series and offered only for spare/replacement use. For new projects, please review the “similar products”.

Power Supply: 230VAC (+10% ~ -20%) 50/60Hz
Case Dimensions: 35mm x 77mm x 75mm
Display: 1 x 3-digit, 12mm LED Display
Keypad: 4 micro switches
Operating Temperature: 0 ~ 50 °C
Control Type: PID, P, PI, PD or Hysteresis ON/OFF
Input Type: FeConst (type J) T/C → 0 ~ 500°C
NiCrNi (type K) T/C → 0 ~ 1200°C
Accuracy: ±0.5% Full Scale, ±1 digit
Control Output: 1 Relay Output 8A / 250VAC (NO/NC)

[SET] Target Temperature Setting:

This sets your desired operating temperature. For example, to maintain 125°C, set this value to 125.

FeConst: 0°C – 400°C (Factory default: 0)
NiCrNi: 0°C – 1200°C

[PARAMETERS]

Pb → Proportional Band (0 – 100)
It → Integral Time (0 – 1999)
dt → Derivative Time (0 – 1999)
evet → Cycle Time (1 – 200 sec)
PoFS → Proportional Offset (0 – 100)
SStr → Soft Start Duration (0 – 250 min)

HYS → Hysteresis (1 – 200)
Eout → Output on Error (0 – 100)
Act → Control Direction: HEAt / cooL
InP → Input Type: FEco = J-type / niCn = K-type
uPL / LoL → Upper / Lower Temperature Limits
Soff → Probe Calibration (-19.9°C ~ +19.9°C)
unıt → Measurement Unit: cELc (Celsius) / FAh (Fahrenheit)
Fılt → Filter Constant (1 – 32)
Stu → Auto PID Setup: on / oFF
rFAc → Factory Reset: 0 = No / 1 = Yes
E n G c → Parameter Access Code (0 – 9999) (Default: 0)

[AUTO-PID] Automatic PID Tuning:

While on the main screen, press and hold the P button for 10 seconds to initiate auto PID calculation.

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