TRMS digital multimeter with intrinsic safety for permanent use in the oil, chemicals, agri-food, cosmetics and pharmaceutical industries, as well as cement production and mining.

MTX 3297Ex, the ideal digital multimeter for your electrical measurement work in explosive Ex zones. To be used in mines, in the presence of gas and in the presence of explosive dust

Approved and certified for the highest levels of risk. An exceptional multimeter which meets the strictest requirements.

• Isolated optical communication
• Terminal strip with reminder and
  connection check on the display
  Detection and indication of a hazardous
  voltage present on the instrument’s terminals
• Large backlit screen with double display
• A moulded casing for excellent handling and
  protection against shocks and falls
  Bargraph with central zero mode
  

V DC Measurement range	0.001 mV to 1000.0 V DC
Uncertainty	0.05 % + 25 cts
V AC, V AC+DC Measurement range	0.001 mV to 1000.0 V AC or AC+DC
AC, AC+DC uncertainty / Bandwidth	0.05 % + 25 cts. 0.05% + 40 cts / 100 kHz
VLOWZ Measurement range	0.01 mV to 1000.0 V
Uncertainty / Bandwidth	0.05 % + 25 cts / 300 Hz
Qualified measurement range in Ex zones	0.001 mV to 65.00 V
A DC Measurement range	0.01 μA to 10.00 A DC (max. 20 A/30 s)
Uncertainty	0.8 % + 20 cts
A AC, A AC+DC Measurement range	0.01 μA to 10.00 A AC or AC+DC (max. 20 A/30 s)
Uncertainty / Bandwidth	1.0 % + 25 cts / 20 kHz
Qualified measurement range in Ex zones	0.01 μA to 5.00 A
with external sensor (clamp)	up to 6,000 A depending on sensor, transformation ratio 1, 10, 100, 1,000 mV/A
Hz	10.00 Hz to 200.0 kHz (for V), 20.00 kHz (for A)
Uncertainty	0.1 % + 1 ct
Ω Measurement range	0.00 Ω to 60.000 MΩ
Continuity	Audible signal < 30 ± 5 Ω / < 5 V, I < 1.1 mA
Diode test	3.000 V, 1 % + 30 cts / U < 5 V, I < 1.1 mA
nF/μF/mF Measurement range	0.100 nF to 60.000 mF
Accuracy	1 % + 10 cts
°C/°F	-200.0 °C to +800.0 °C
Uncertainty	0.1 % ± 1.5°C
Main measurement	Conductance
Secondary measurements	Duty cycle, pulse width, resistive power (U2/R), dBm
MAX/Min/AVG, Peak+/Peak-	100 ms on all the main measurements except Peak (1 ms)
PWM filter	4th-order 300 Hz low-pass filter
ΔREL, ΔREL/R	Differential value, relative value
Display	Double 60,000-count LCD screen with 3-level backlighting
Power supply	4 x AA/FR6 Li-FeS2 Ex-qualified batteries / Battery life 350 h
Compliance outside Ex zones	IEC 6010-2-033 1000V CAT III/600V CAT IV, EN 61326-1 Class B
Ingress protection / Environment	IP 67* / Storage -20°C to +70°C, Use -10°C to +55°C
dimensions and weight	Dimensions (L x W x H) : 196 x 90 x 47.1 mm – Weight: 715g
Warranty	3 years