The Fluke Calibration 6109A156 Portable Calibration Bath, 35 °C to 250 °C, 115V AC is for professionals working in clean process industries, such as facilities managers, production engineers and calibration technicians who prefer these baths for a variety of reasons. For example, up to four tri-clamp sanitary sensors fit easily into the bath for calibration at ± 0.1 °C temperature display accuracy. Throughput is even higher for sanitary RTDs with small or no flanges.

Process manufacturing plants for pharmaceuticals, biotechnology, and food production utilize many sanitary temperature sensors that require regular calibration. Production must stop while the calibrations are taking place. Therefore, more calibration throughput means less plant downtime. And in businesses where even a few tenths of a degree Celsius can cost thousands of dollars in ruined products, temperature accuracy is crucial to maintaining quality.

Facilities managers who need to meet U.S. FDA and ISO clean room standards will like the 6109A-156's stainless steel casing that stands up to harsh cleaning solutions; it will help to maintain the accuracy of the plant's temperature sensors, thus reducing the possibility of an expensive product batch loss.

Production engineers will appreciate the bath's accuracy, which helps them control sensor out-of-tolerance conditions. Moreover, these professional prefer to use a bath designed specifically for clean room calibration throughput.

Calibration technicians who perform calibrations on platforms, in crawl spaces, and other hard-to-reach areas of the plant will appreciate the 6109A-156's portability and clean room compatibility (i.e. it is easy to sanitize and does not harbor bacteria).

The 6109A-156 bath calibrates most temperature sensor applications used in clean process manufacturing, including pharmaceutical bioreactors (-10 °C to 100 °C), chemical reactors (200 °C), steam-in-place process (122 °C to 140 °C), autoclave sterilization (120 °C to 135 °C), food storage freezers (-25 °C), and food processing (0 °C to 220 °C).

A large tank volume (106 mm diameter x 154 mm depth) lets you immerse up to four sanitary sensors at the same time. Calibrate a batch of oddly shaped sensors of varying lengths and diameters, and still have room for a reference thermometer. Fast heating and cooling times let you get the job done without spending a lot of time waiting for the bath to come to temperature and stabilize. Increase your sanitary sensor calibration throughput, thereby decreasing expensive production downtime.

An excellent system display accuracy of ± 0.1 °C accuracy covers all sources of error, including calibration uncertainty, stability, uniformity, and repeatability; NVLAP accredited calibration is standard with the 6109A-156. Fluke Calibration's high metrological standards and conservative specifications mean you can have confidence in the measurements you make with this bath.

Take This Portable Bath Almost Anywhere, Including Clean Rooms

The 6109A-156 weighs 16 kilograms (35 pounds) and features a fixed, non-rotating bail handle, enabling most people to carry it with one hand. Single-handed carrying comes in handy when the job includes walking up and down stairs, across catwalks, and into other hard-to-reach environments. Two recessed handles on the bottom of the bath also makes it easy to move from shelf to cart, or benchtop. A sealed lid protects the 6109A-156 against fluid spills while during manual transportation.

The 6109A-156's stainless steel casing stands up to the harsh chemicals used to sterilize equipment for clean room use; synthetic materials used for decals, keypads and feet do not harbor bacteria. The keypad is sealed against moisture ingress to protect against damage during cleaning or in non-controlled environments.

Easy to Use and Maintain

The 6109A-156 features a large color display that indicates date and time, bath fluid temperature, setpoint temperature, control indicator when the fluid is at setpoint, and heating status. A ready indicator changes color from amber to green, giving you 360-degree visual indication when the bath fluid has reached its setpoint temperature and is ready for you to start making measurements. A hot warning indicator lights up if the fluid temperature reaches above 60 °C, warning the operator that the bath fluid and tank area are hot and should not be touched.

1 - Tank: Stainless steel tank contains bath fluid
2 - Bath Fluid: Temperature sensors are inserted into bath fluid for calibration
3 - Control Sensor: Precision platinum resistance thermometer (PRT) control sensor measures and controls temperature of bath fluid
4 - Stir Motor Cover: Protects stir motor
5 - Stir Motor (Under Stir Motor Cover): Drives propeller that circulates fluid to produce uniform temperature
6 - Stir Guard: Separates working area of tank from stir propeller; MIN and MAX marks show correct fill levels
7 - Propeller: Stirs bath fluid
8 - Ready Indicator: Changes from amber to green when bath fluid temperature has reached setpoint; green indicates bath is ready to begin measuring
9 - Carrying Handle: Use carrying handle to lift or move bath; recessed handles on side of bath (not shown)
10 - Threaded Holes: Used to attach accessories to bath
11 - Tank Cover: Isolates bath fluid from environment, reduces fumes, prevents objects from falling into tank, and keeps fluid temperature stable

1 - Fan: Cools tank and heating devices (7109A model shown)
2 - USB Hostport: Used to record temperature data to memory device
3 - USB Device Port: Used to control bath remotely
4 - RS-232 Port: Used to control bath remotely
5 - Control Panel: See control panel details below
6 - Process Input Module: Optional module includes Reference PRT Connection and inputs to measure electrical temperature sensors for calibration

1 - Display: Shows important information about bath such as fluid temperature and setpoint
2 - Soft Keys: Keys correspond to display icons directly above each key and perform variety of useful functions; functions change with status of display
3 - Mode Keys: Monitor, setpoint, program, and setup keys access different groups of settings; some mode keys light up when mode is active
4 - Other Keys: Number keys, cursor keys, and SELECT/ENTER key enable you to make menu choices quickly and easily; number keys let you enter decimal numbers
5 - Hot Warning Indicator: Indicator lights up if fluid temperature is greater than or equal to 60 °C; warns that bath fluid, tank cover, and area around tank are hot and should not be touched; if bath is switched off, indicator stays on until bath reaches safe temperature; indicator flashes at slow rate to conserve energy
6 - STOP Button: Immediately disables heating and cooling and switches off stir motor

1 - Current Fuse: Protects Process Input Module and connected devices from accidental short circuit
2 - RTD Terminals: Test RTD connects to these terminals; graphic on panel shows circuit diagram for four-wire RTD
3 - Reference PRT Connector: Reference probe plugs into this socket
4 - Thermocouple Input: Connector for miniature thermocouple
5 - Transmitter Terminals: A 4-20 mA transmitter connects to two transmitter terminals (labelled mA LOOP and COM)