High Performance Digital Thermostats

High Performance Digital Thermostats

Features Common to all Digital Models:
• Intelligent Control Optimization®, “ICO”, for Adaptive Intelligent PID Temperature Control
• Digital Display and Simple Interface
• Operating Setpoint, Plus Three Adjustable Preset Temperature Values
• User Recalibration Facility, for Optimum Accuracy at the Required Operating Temperature
• Dual-Position Fitting in S Tanks for Convenient Access
• Stirred Circulation within the Tank for Good Temperature Stability and Uniformity
• Low Liquid Protection Float Switch
• Fault Indication Display & Visual Alarm

Item# Description U.S. List Price Quantity
72-4783 High Performance Digital Thermostat without Clamp, GP200, 220-240 VAC, 50/60 Hz
72-4782 High Performance Digital Thermostat without Clamp, GP200, 110-120 VAC, 50/60 Hz
72-4781 High Performance Digital Thermostat without Clamp, GP150, 220-240 VAC, 50/60 Hz
72-4760 High Performance Digital Thermostat without Clamp, GP150, 110-120 VAC, 50/60 Hz
72-4780 High Performance Digital Thermostat with Clamp, GP200, 220-240 VAC, 50/60 Hz
72-4779 High Performance Digital Thermostat with Clamp, GP200, 110-120 VAC, 50/60 Hz
72-4778 High Performance Digital Thermostat with Clamp, GR150, 220-240 VAC, 50/60 Hz
72-4777 High Performance Digital Thermostat with Clamp, GR150, 110-120 VAC, 50/60 Hz
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Features Common to all Digital Models:
• Intelligent Control Optimization®, “ICO”, for Adaptive Intelligent PID Temperature Control
• Digital Display and Simple Interface
• Operating Setpoint, Plus Three Adjustable Preset Temperature Values
• User Recalibration Facility, for Optimum Accuracy at the Required Operating Temperature
• Dual-Position Fitting in S Tanks for Convenient Access
• Stirred Circulation within the Tank for Good Temperature Stability and Uniformity
• Low Liquid Protection Float Switch
• Fault Indication Display & Visual Alarm

Features Common to High Performance Digital Models:
• Soft-touch rotor for fast navigation through layered menu system
• Dual display: 4 character bright LED, and 2 line 16 character LCD
• Twin heaters, for compliance with Flicker standard EN61000-3-3
• Timer function for reaction timing with alert and heater control
• Convenient and safe heater timer for start-up and shut-down
• 2 pump connector plates, choice of pipe bore: 6 or 11mm
• Fault indication display
• External Pt1000 temperature probe socket
• Two-point user recalibration of internal and external probes
• Off-set adjustment for optimal isothermal performance
• Programmable relay, useful for refrigeration on/off control, and control of ancillary equipment during program execution
• The temperature range and the heater power are automatically limited according to the liquid type selected
• Variable high and low temperature alarm settings, choice of fixed temperature or deviation modes (configurable to switch relay)
• Choice of language: English, French, German
• RS-232 interface
• Audible alarm

Model GR150
• -50° to 150°C
• Powerful pump for external circulation, maximum flow 17 LPM, maximum static head 310 mbar
• Memory capacity for one program
of up to 30 segments

Model GP200
• -50° to 200°C
• Powerful pump for external circulation, multi-stage variable flow rate, max. flow 21 LPM, max. pressure 530 mbar
• Two programmable relays
• Storage for five programs
• Front-panel programming interface, featuring:
- Set target temperature
- Set heating or cooling time to target temperature
- Up to 30 segments per program
There are five models, each available in two versions. Without clamp for use with Grant S(stainless steel) and P(plastic) tanks or with clamp, for use with almost any type of vessel.
Simple to use and easy to choose. Knowing the temperature range, degree of precision required and the size of tank needed is the starting point. This new Optima series of modular thermostatic controllers, baths and circulators makes it simple to arrive at the perfect solution for your application.
1. Select the Thermostat
First select the temperature range and performance required and then compare the functions of the five new thermostats. Wide range available, from the simple efficiency of the analog GA100 to the sophistication of the powerful, programmable GP200. All the digital thermostats in the Optima series offer the unique navigator and interactive display which makes set-up and calibration a straightforward task. Lastly decide between a version without clamp, for use with the new plastic or stainless steel tanks, or with a clamp, for use with almost any type of vessel. For the ultimate sophistication, the optional Labwise® PC software package allows two-way communication for status display, programming and data capture in the most demanding applications.
2. Select the Tank
Quality was the keynote in the development of the new range of baths from Grant. Choose between the P plastic, or S stainless steel baths, depending on your application. There is a wide choice of sizes to cope with the varying demands of the modern laboratory. Together with the Optima thermostats they provide the ideal solution for most laboratory applications.
3. Select the Accessories
Finally, no system is complete without the vital accessory items. Purpose designed lids, racks, coolers etc. help to optimize the performance of high quality laboratory equipment. Choose from the full range of accessories.
Specifications72-478372-478272-478172-476072-478072-477972-477872-4777
Depth Below Tank Rim135 mm135 mm135 mm135 mm135 mm135 mm135 mm135 mm
Display4 digit 13 mm LED4 digit 13 mm LED4 digit 13 mm LED4 digit 13 mm LED4 digit 13 mm LED4 digit 13 mm LED4 digit 13 mm LED4 digit 13 mm LED
Display Resolution
Electrical Supply VAC220-240110-120220-240110-120220-240110-120220-240110-120
External ProbePT1000PT1000PT1000PT1000PT1000PT1000PT1000PT1000
Heater Power: 110-115V kW 1.3 kW 1.3 kW 1.3 kW 1.3 kW
Heater Power: 220-240V kW2 kW 2 kW 2 kW 2 kW 
Height Above Tank Rim180 mm180 mm180 mm180 mm180 mm180 mm180 mm180 mm
Hz50/6050/6050/6050/6050/6050/6050/6050/60
Level - Float Switchyesyesyesyesyesyesyesyes
Maximum Flow, (water)21 L/min, adj. flow rate21 L/min, adj. flow rate21 L/min, adj. flow rate21 L/min, adj. flow rate17 L/min17 L/min17 L/min17 L/min
ModeHigh Performance DigitalHigh Performance DigitalHigh Performance DigitalHigh Performance DigitalHigh Performance DigitalHigh Performance DigitalHigh Performance DigitalHigh Performance Digital
ModelGP200GP200GP200GP200GR150GR150GR150GR150
No. Stored Programs5 x 30 segment5 x 30 segment5 x 30 segment5 x 30 segment1 x 30 segment1 x 30 segment1 x 30 segment1 x 30 segment
No. Stored Temperature Values44444444
Offset Adjustmentyesyesyesyesyesyesyesyes
Overall Dims. Excl. Clamp, H x W x D315 x 115 x 145 mm315 x 115 x 145 mm315 x 115 x 145 mm315 x 115 x 145 mm315 x 115 x 145 mm315 x 115 x 145 mm315 x 115 x 145 mm315 x 115 x 145 mm
Pipe Bore Inlet/Outlet6mm/11 mm6mm/11 mm6mm/11 mm6mm/11 mm6mm/11 mm6mm/11 mm6mm/11 mm6mm/11 mm
Programmableremote via PCremote via PCremote via PCremote via PCremote via PCremote via PCremote via PCremote via PC
Pump Maximum Pressure530 mbar530 mbar530 mbar530 mbar310 mbar310 mbar310 mbar310 mbar
RS-232yesyesyesyesyesyesyesyes
Relays22221111
Safety Over Temperatureadjustable cut-outadjustable cut-outadjustable cut-outadjustable cut-outadjustable cut-outadjustable cut-outadjustable cut-outadjustable cut-out
Setting Resolution0.10.10.10.10.10.10.10.1
Stability, S Tanks, (Din 58966) at 37
Temperature Range using P Tanksamb + 5 to 99amb + 5 to 99amb + 5 to 99amb + 5 to 99amb + 5 to 99amb + 5 to 99amb + 5 to 99amb + 5 to 99
Temperature Range using S Tanks0 to 2000 to 2000 to 2000 to 2000 to 1500 to 1500 to 1500 to 150
Temperature Range without Tank-50 to 200-50 to 200-50 to 200-50 to 200-50 to 150-50 to 150-50 to 150-50 to 150
Two-Point Re-Calibrationyesyesyesyesyesyesyesyes
Uniformity, S Tanks at 37