Introduction 1 Introduction Safety information 1.1.1 General Information This manual contains information that must be observed in the interest of your own safety and to avoid material damage. This information is supported by symbols which are used in this manual as indicated. Please read this manual before starting up the device.
1 Introduction Description 1.2.1 Intended use The simulator for pH/redox is used for startup, for calibration, and for inspecting/troubleshooting pH and redox transmitters. 1.2.2 Operating principle The simulator is used to check that technical pH and redox measurement instruments are working cor- rectly.
00082906 for testing measuring devices with a BNC socket as the pH input Connecting cable for pH simulator 202711/10, BNC to N-connector, length 1.1 m, for 00082906 testing the pH meter run from the electrode head (for standard electrodes with an N-/ S7-/S8-plug head), not suitable for electrodes with integrated temperature probes Connecting cable for pH simulator 202711/10, BNC to Shield-Kon®(free cable end with...
Electrical connection 3 Electrical connection Connecting cables You can find suitable connecting cables for the device in chapter 2.3 "Accessories", Page 6.
Operation 4 Operation General information You switch the pH simulator on or off using the "ON/ OFF" switch. To switch it on, pull out the switch- ing knob first (1) and then flick it upwards (2). To switch it off, pull out the switching knob again and flick it downwards.
4 Operation Testing the input of a pH transmitter 4.2.1 Transmitter settings Depending on the device configuration (manual temperature specification or automatic temperature compensation), you first have to set the reference conditions for the temperature compensation on the transmitter. In the case of a manual temperature specification, you have to set the temperature to 25 °C. In the case of automatic temperature compensation, the temperature of the connected temperature probe must be adjusted to 25 °C.
4 Operation Calibrating pH transmitters and checking connected components 4.3.1 Transmitter settings Depending on the device configuration (manual temperature specification or automatic temperature compensation), you first have to set the reference conditions for the temperature compensation on the transmitter. In the case of a manual temperature specification, you have to set the temperature to 25 °C. In the case of automatic temperature compensation, the temperature of the connected temperature probe must be adjusted to 25 °C.
4 Operation 4.3.3 Allocating the current/pH value The following diagram shows how the correct current values on the transmitter's actual value output are allocated to the pH values set on the pH simulator, for the measuring range 2 to 12 pH ≙ 0 to 20 mA.
4 Operation Testing the input of a redox transmitter 4.4.1 Transmitter settings The display of the transmitter must be set to "mV". In the case of customer-specific settings, the operator/ user has to perform the calculation themselves. 4.4.2 Settings and steps for operating the simulator 1.
4 Operation Calibrating redox transmitters and checking connected components In principle, the process used for checking a redox transmitter is similar to the process used for checking a pH transmitter – as described on page 10. Depending on the measuring span of the redox transmitter to be calibrated, set values between 7 pH and 0 pH on the simulator's pH selection switch.
4 Operation 4.5.1 Allocating the current value/redox potential The following table shows how the correct current values on the transmitter's actual value output are al- located to the simulated redox potential on the simulator using the set pH values for the measuring range 0 to 500 mV ≙...
Maintenance 5 Maintenance Replacing used batteries To replace a used battery, proceed as follows: 1. Remove the 4 screws from the back cover of the device. 2. Pull the two housing parts apart. 3. Replace the used batteries. 4. Put the two housing parts back together again. 5.
Technical data 6 Technical data Simulation range 0 to 14 pH in increments of 1 pH or redox potential +414 mV to -414 mV in in- crements of 59 mV Accuracy ±1 % of the set pH value Reference temperature 25 °C Output resistance Depending on the switch position: 1 kΩ...
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JUMO GmbH & Co. KG JUMO Instrument Co. Ltd. JUMO Process Control, Inc. Street address: JUMO House 6733 Myers Road Moritz-Juchheim-Straße 1 Temple Bank, Riverway East Syracuse, NY 13057, USA 36039 Fulda, Germany Harlow, Essex, CM20 2DY, UK Delivery address:...