Analog Thermostats

Analog Thermostats

• Ambient +5 to 99°C

• Setting Dial with Analog Scale, Resolution Better than 1°C (20 to 80°C)

• Reference Thermometer Required (Not Supplied) for Accurate Temp Setting

• Dual Position Fitting in S Tanks for Convenient Access

• Stirred Circulation within Tank for Good Temperature Stability & Uniformity

• Low Liquid Protection Float Switch

• Visual Alarm
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.


Item# Description U.S. List Price Quantity
72-4768 Analog Thermostat with Clamp, GA100, 220-240 VAC, 50/60 Hz
72-4767 Analog Thermostat with Clamp, GA100, 110-120 VAC, 50/60 Hz
72-4766 Analog Thermostat without Clamp, GA100, 220-240 VAC, 50/60 Hz
72-4765 Analog Thermostat without Clamp, GA100, 110-120 VAC, 50/60 Hz
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• Ambient +5 to 99°C


• Setting Dial with Analog Scale, Resolution Better than 1°C (20 to 80°C)


• Reference Thermometer Required (Not Supplied) for Accurate Temp Setting


• Dual Position Fitting in S Tanks for Convenient Access


• Stirred Circulation within Tank for Good Temperature Stability & Uniformity


• Low Liquid Protection Float Switch


• Visual Alarm
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.
Specifications72-476872-476772-476672-4765
Depth Below Tank Rim135 mm135 mm135 mm135 mm
Displaynonenonenonenone
Display Resolution
Electrical Supply VAC220-240110-120220-240110-120
External Probenonenonenonenone
Heater Power: 110-115V kW 1.3 kW 1.3 kW
Heater Power: 220-240V kW1.4 kW 1.4 kW 
Height Above Tank Rim180 mm180 mm180 mm180 mm
Hz50/6050/6050/6050/60
Level - Float Switchyesyesyesyes
Maximum Flow, (water)no pumpno pumpno pumpno pump
ModeAnalogAnalogAnalogAnalog
ModelGA100GA100GA100GA100
No. Stored Programsnonenonenonenone
No. Stored Temperature Values1111
Offset Adjustmentnononono
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 mm
Pipe Bore Inlet/Outletnananana
Programmablenononono
Pump Maximum Pressureno pumpno pumpno pumpno pump
RS-232nononono
Relaysnonenonenonenone
Safety Over Temperaturenononono
Setting ResolutionBetter than 1Better than 1Better than 1Better than 1
Stability, S Tanks, (Din 58966) at 37
Temperature Range using P Tanksamb + 5 to 99amb + 5 to 99amb + 5 to 99amb + 5 to 99
Temperature Range using S Tanks20 to 9920 to 9920 to 9920 to 99
Temperature Range without Tank20 to 9920 to 9920 to 9920 to 99
Two-Point Re-Calibrationnananana
Uniformity, S Tanks at 37