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Ohaus
Ohaus Guardian™ 5000 e-G52HS10C Hotplate-Stirrer, 120V, 10" x 10" Ceramic Plate, 20L Capacity
$1,155.00 - $1,321.00
In stockPrice varies by Option.
OHAUS Guardian 5000 hotplate stirrer with a 10 × 10 in (26 × 26 cm) ceramic plate, heating to 500 °C at 1650 W (120 V) and stirring 50–1800 rpm. Range starts at ambient + 5 °C and reads in 0.5 °C increments. Backlit LCD, 99-hour timer, SafetyHeat dual-control over-temperature cut-off, Run Dry Protection and built-in RS232. Available with or without a temperature probe.
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Description
The OHAUS Guardian 5000 e-G52HS10C is a digital hotplate stirrer built around a 10 × 10 in ceramic plate — the largest plate in the Guardian 5000 range — with heating and stirring both under closed-loop digital control and a 4.5 × 1.2 in white-character LCD showing setpoints and process values.
Three of its features are worth reading before you compare it on price alone. SafetyHeat uses two independent safety controls that continuously monitor the electronics and shut heating off before an over-temperature condition occurs. SmartHeat lets the user cap the plate’s set-temperature upper limit anywhere from 0 °C to the rated maximum, which is how you stop a shared instrument being driven past a solvent’s flash point. Run Dry Protection shuts heating off and alarms if probe-controlled heating is running with the probe tip no longer submerged in the medium.
SmartRate allows the speed or temperature ramping rate to be selected rather than always ramping at full authority, and single-point calibration is available at three points for the plate and three for the probe.
Specifications (e-G52HS10C)
- Function: heating and stirring
- Top plate: 10 × 10 in / 26 × 26 cm, ceramic; painted aluminium housing
- Temperature range: ambient + 5 °C to 500 °C
- Temperature increments and readability: 0.5 °C
- Temperature stability: ±1 % of plate temperature (±1 °C below 100 °C); ±0.5 % with probe (±0.5 °C below 100 °C)
- Heating power: 1650 W at 120 V / 2066 W at 230 V
- Speed range: 50 – 1800 rpm, stability ±2 %
- Stirring capacity (H2O): 22 L
- Display: 4.5 × 1.2 in / 115 × 30 mm white-character LCD
- Timer: 1 minute to 99 hours 59 minutes
- Probe connection: PT100, PT1000 (Class A); measurement accuracy ±0.2 °C plus PT1000 Class A tolerance
- Data logging and remote control: built-in RS232; optional RS232-USB and RS232-Ethernet interface kits
- Ingress protection: IP32
- Dimensions (L × W × H): 402 × 287 × 118 mm / 15.84 × 11.28 × 4.65 in
- Net weight (basic model): 14.8 lb / 6.7 kg
- Electrical: 100–120 V, 15 A / 220–240 V, 10 A, 50/60 Hz
- Working environment: 5–40 °C, 80 % RH non-condensing
Options
Two options are offered: hotplate stirrer only, or hotplate stirrer with a temperature probe for probe-controlled heating. OHAUS’s kit configuration for this model (e-G52HS10C-K1) comprises Temperature Probe 30500590 — PT1000 Class A, −40 to 400 °C, 20 cm, SS316/304 — together with Probe Holder Kit 30973298. Alternative probes are listed by OHAUS in PT100, longer 25 cm, Hastelloy and PTFE-sheathed variants, and a splash shield (30910732) is listed specifically for the 10 × 10 in model.
Frequently asked questions
What is the difference between the two options?+
The lower-priced option is the hotplate stirrer on its own, in which heating is controlled from the plate sensor. The probe option adds an external temperature probe so heating can be controlled from the medium itself, which is what enables probe-referenced stability of ±0.5 % (±0.5 °C below 100 °C) and the Run Dry Protection alarm. OHAUS's kit configuration for this model comprises Temperature Probe 30500590 (PT1000 Class A, −40 to 400 °C, 20 cm, SS316/304) and Probe Holder Kit 30973298.
What temperature and speed range does it cover?+
Ambient + 5 °C to 500 °C, set and read in 0.5 °C increments, and 50 to 1800 rpm with ±2 % speed stability.
How large a volume will it stir?+
OHAUS's Guardian 5000 datasheet lists the stirring capacity of the e-G52HS10C as 22 L of water. Some listings for this model quote 20 L, which is the figure OHAUS gives for the 7 × 7 in and round-plate models in the same range — the 10 × 10 in plate is the 22 L unit.
What electrical supply does it need?+
100–120 V at 15 A, or 220–240 V at 10 A, 50/60 Hz. Heating power is 1650 W at 120 V and 2066 W at 230 V. At 15 A on a 120 V supply, confirm the branch circuit before installing it alongside other heating instruments on the same run.
Can it be connected to a computer or data logger?+
Yes. An RS232 port is built in for remote control or data logging, and OHAUS lists optional RS232-USB (30304101) and RS232-Ethernet (30304102) interface kits.
What safety features does it have?+
SafetyHeat, which uses two independent safety controls to monitor the electronics and shut off heating before an over-temperature condition occurs; SmartHeat, which lets the user set the plate's temperature upper limit anywhere from 0 °C to the rated maximum; Run Dry Protection, which shuts off heating and alarms if probe-controlled heating runs with the probe tip no longer submerged; and a timer covering 1 minute to 99 hours 59 minutes. The unit is rated IP32.
Related products
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Ohaus Guardian 5000 hotplate-stirrer with a 7 in × 7 in ceramic plate and 20 L capacity, on 120 V, with SafetyHeat, SmartHeat and run-dry protection.
