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Temperature Controllers and Indicators, Juchheim
Laboratory Temperature Controllers LTR 4200 and LTR 4200-B

Optimized temperature controller for direct connection of laboratory heaters and resistance thermometer or thermocouples. Extremely easy to operate yet offering premium precision with safety switch-off function pursuant to VDE. Actual and nominal values permanently visible, nominal value set via pushbutton. Sturdy aluminium housing with small footprint. Safety line monitoring. Continuous setting of heating output. PID control response. Analog and digital interface available as an option.

Technical data:

  • Microprocessor controller with 2×4-digit, 7-segment display, H=13 mm
  • Fully parameterisable
  • PID control response: Xp = 0-9999 symm. to nominal value
  • Heating power continuously adustable from 1 – 99%
  • Display and control accuracy: max. ±0.1°C
  • Self-optimizing temperature control
  • Measuring and control range: Pt100 -200°C to max. +850.0°C
    Fe-CuNi (L) -200+900°C, NiCr-Ni (K) -200 + 1200°C, PtRh-Pt (S) 0+1768°C
  • Overtemperature switch-off function, nominal value + >10K
  • Non-wearing internal power control valve
  • 2-pole on-off switch, green, illuminated
  • Sturdy aluminium housing, powder-coated, front and rear anodized aluminium
  • Sensor breakage protection
  • Back-up fuse at Pt100
  • Housing dimensions (W×H×D): 125 × 215 × 135 mm
  • Power supply: 230 V/50Hz,16A
  • Breaking capacity: 10 A/230 V for ohm resistive loads
  • Sensor connection 2×Pt100 or 2 pc. 1×Pt100, Tuchel 7-pole
ArticleOrder No.
Laboratory temperature controller LTR 420010 57 04200
Laboratory temperature controller LTR 4200-B10 57 04201

Equipment identical with LTR 4200, plus an additional measuring point and sensor connection 2×Pt100 or 1×Pt100. The additional measuring point does not have to be occupied. All units also available for thermocouples!


Options
ArticleOrder No.
Acoustic transmitter10 57 04301

with automatic unlocking
Higher breaking capacity 16A10 57 04302
Analog output10 57 04303

0–20 (4–20) mA
Analog input10 57 04304

external setting: 0–20 (4–20) mA


Accessories

For laboratory temperature controllers LTR, with cable 2m long and connector.

ArticleOrder No.
Resistance thermometer71 57 04103

1 × Pt 100 (1/3 DIN), 200 × 8 mm made of V4A, lemo plug
Resistance thermometer71 57 04101

2 × Pt 100 (1/3 DIN), 200 × 8 mm made of V4A, tuchel plug
Resistance thermometer10 57 04104

1 × Pt 100 (1/3 DIN), 200 × 8 mm made of teflon, lemo plug
Resistance thermometer10 57 04102

2 × Pt 100 (1/3 DIN), 200 × 8 mm made of teflon, tuchel plug



Other models and sizes are available on request.