Fann Instrument Company introduces a new Electrical Stability Tester for use with oil-based drilling fluids. Mud engineers depend on the electrical stability test to monitor a fluid’s emulsion stability and oil-wetting capability. The new tester is simpler to operate and can be used
in the lab or in the field anywhere in the world.
The Model 23E Electrical Stability Tester (EST) conforms to the test procedure described in API Recommended Practice 13B-2. It operates on external power or two nine volt batteries. The Model 23E is calibrated in peak volts which is the maximum voltage that the fluid
experiences between the two electrodes. Peak voltage may be converted to Root Mean Square (RMS) voltage by multiplying the peak voltage by 0.7071.
Features:
- Internal power supply and built in AC power plug allow universal operation
- Power requirements – 100 to 240 VAC, 50/60 Hz, 10 watts
- Portable operation on two (2) nine volt batteries
- Self-calibration for immediate performance checks
- Large backlit display is easy to read, even in low light
Ordering Information
Part Number 102130986 Electrical Stability Tester
Specifications
| Output Frequency | 340 ± 2 Hz |
| Output wave form | Sinusoidal, <1% total harmonic distortion |
| Output voltage range | 0 to 2025 V ± 25 V peak to ground (1432 Volts RMS) |
| Breakdown peak output current | 61 micro-amps |
| Peak Volts readout | Backlit Digital LCD |
| Voltage ramp rate | 150 ± 10 V/second |
| Power supply | Two 9-Volt alkaline batteries 100-240 VAC, 50/60 Hz, 10 watts |
| Battery life | Approximately 250 tests |
| Dimensions | 8.3 X 5.1 X 2.8 in. (21 X 13 X 7.1 cm) |
| Complete Weight | 4 lbs (1.8 kg) |
| Probe and Cable length | 24 in (61 cm) |
| Probe Electrode Spacing | 0.061 in. (0.155 cm) |
| Operating temperature range. | 32° to 122°F (0° to 50°C) |
