Now there's an intrinsically safe digital multimeter (DMM) you can use in a wide range of hazardous settings. Whether you work in petroleum, chemical, or pharmaceutical environments, the 28 II Ex gives high-end test and troubleshooting power you need is packed into the most rugged intrinsically safe (IS) DMM Fluke has ever built: drop-proof, waterproof, dust-proof (IP67). The 28 II Ex meets the following certifications:
IECEx (International)
- Ex ia IIC T4 Gb
- Ex ia I Ma
ATEX (Europe)
- II 2G Ex ia IIC T4 Gb
- I M1 Ex ia I Ma
NEC / CEC (North America)
- Class I, Division 1, Groups A,B,C,D T4
- Class I, Zone 1, AEx ia IIC T4
- Ex ia IIC T4
PCEC (China)
Simtars (Australia)
IEx (Brazil)
EAC (Russia)
- 1Ex ia IIC T4 Gb X
- PO Ex ia I Ma X
- IP6X
| Key Features |
| 4-1/2 digit mode for precise measurements (20 000 counts) |
| True-rms ac voltage and current for accurate measurement on nonlinear signals |
| Measures up to 1000 V and 10A AC and DC (note that Ex zones require reduced measurements) |
| Low pass filter ensures accurate voltage and frequency measurements on variable speed motor drives (VSDs) |
| Frequency to 200 kHz and % duty cycle to help you diagnose VSDs and switching power supplies |
| Resistance, continuity and diode test |
| 10 000 μF capacitance range for components and motor caps |
| Conductance measurements for high resistance or leakage tests |
| Min/Max-Average and Peak capture to record transients and variations automatically |
| Relative mode to remove test lead interference on resistance measurements |
| Auto and manual ranging for maximum flexibility |
| Input Alert protects you by chirping and flashing “Lead when leads are plugged into the wrong inputs |
| Backlit keypad buttons provide extra visibility in poorly lit areas, even when you’re wearing full PPE |
| Large display digits and 2-level bright white backlight also increases visibility |
| Long battery life – 400 hours typical without backlight (Alkaline) |
| Optional magnetic hanger for easy setup and viewing while freeing your hands for other tasks |
| Specifications |
|
28IIEX
Digital Multimeter; True-RMS
|
|
| Model Overview |
|
| Model | 28IIEX |
DC voltage
| Range:
0.1 mV to 1000 V
Accuracy:
±(0.05% + 1)
|
AC voltage
| Range:
0.1 mV to 1000 V
Accuracy:
±(0.7% + 4)
|
DC current
| Range:
0.1 μA to 10 A
Accuracy:
±(0.2% + 4)
|
AC current
| Range:
0.1 μA to 10 A
Accuracy:
±(1% + 2)
|
Resistance
| Range:
0.1 Ω to 50 MΩ
Accuracy:
±(0.2% + 1)
|
Conductance
| Range:
60.00 nS
Accuracy:
±(1.0% + 10)
|
Diode test
| Range:
2.0 V
Accuracy:
±(2.0% + 1)
|
| Duty cycle | Range:
0.0% to 99.9%
Accuracy:
Within ±(0.2% per kHz + 0.1%) for rise times <1 µs
|
| Capacitance | Range:
10 nF to 9999 μF
Accuracy:
±(1% + 2)
|
Frequency
| Range:
0.5 Hz to 199.99 kHz
Accuracy:
±(0.005% + 1)
|
| Temperature | Range:
-200°C to +1090°C (-328°F to +1994°F)
Accuracy:
±(1% + 10)°C [±(1% + 10)°F]
|
| Display counts | 6000 counts/19,999 counts in high-resolution mode |
| Peak capture | Record transients up to 250 us |
| Min/Max/Avg recording | Display signals up to approximately 100 ms |
| Safety Certifications |
|
| ATEX | {Ex} II 2G Ex ia IIC T4 Gb
{Ex} I M1 Ex ia I Ma
|
| NEC-500 | Class I, Div 1, Groups A-D, 130°C |
| IECEx | Ex ia IIC T4 Gb
Ex ia I Ma
|
| GOST R Ex | 1Ex ia IIC T4 Gb X
PO Ex ia I Ma X
IP6X
|
| General Specifications |
|
| Power | Three AAA batteries
Battery life: 400 hours
|
| Display | LCD, with backlight |
| External protection | Rubber holster |
| Warranty | Three years |
| Size with holster (H x W x L) | 6.4 x 10.0 x 19.8 cm (2.5 x 3.9 x 7.8 in) |
| Weight with holster | 700 g (1.54 lb) |
