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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.
The temperature range is dependent on the type of bath used: see the specification table for details. Accessory cooling is required around and below ambient temperature.
dual position fitting in S tanks for convenient access
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 ambient + 5ºC to 99ºC
setting dial with analogue scale, resolution better than1ºC (20 to 80ºC)
a reference thermometer is required (not supplied) for accurate temperature setting
dual position fitting in S tanks for convenient access
stirred circulation within the tank for good temperature stability and uniformity
low liquid protection by float switch
visual alarm
GA100-P12
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Features common to all digital models:
Intelligent Control Optimisation™, “ICO”, for adaptive intelligent PID temperature control
digital display and simple user 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 by float switch
fault indication display
visual alarm
GR150-S12
Features common to all digital models: digital display: 4 character bright LED
exceptionally simple user interface based on a novel, sensitive rotor plus two keys
GD100
0 to 100ºC
GD120
0 to 120ºC
two pump connector plates supplied as standard, choice of pipe bore: 6mm and 11mm
powerful pump for external circulation, maximum flow rate 17 L/min, maximum pressure 310 mbar
timer function for reaction timing, 0 to 9999 minutes
variable high temperature alarm setting
user-adjustable over temperature cut-out
temperature range and heater power are automatically limited according to the liquid type selected
audible alarm
immersion thermostat with clamp, for use with
almost any type of vessel
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Features common to all digital models:
novel soft-touch rotor for fast, intuitive navigation through the powerful, layered menu system
dual display: 4 character bright LED, plus two line 16 character LCD
twin heaters, for compliance with Flicker standard EN61000-3-3
heater power 2kW, for fast heat up
timer function for reaction timing, 99 hours, 59 minutes, with audible alert and heater control
convenient and safe heater timer for early morning start-up and evening shut-down
two pump connector plates supplied as standard, choice of pipe bore: 6mm and 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, particularly 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
alarms can be configured to switch a relay
choice of language: English, French, German
RS232 interface
optional Labwise PC software for program set-up, data-logging and real-time graphing
adjustable over-temperature cut-out
audible alarm
GD120-S38
GD150
0 to 150ºC
powerful pump for external circulation, maximum flow 17 L/min, maximum static head 310 mbar
memory capacity for one program of up to 30 segments
GD150
0 to 200ºC
powerful pump for external circulation, multi-stage variable flow rate, max. flow 21 L/min, max. pressure 530 mbar
two programmable relays
storage for five programs of up to 30 segments
front-panel programming interface, featuring:
- set target temperature
- set heating or cooling time to target temperature
- up to 30 segments per program
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