TES-33 - battery capacity tester

TES-33 is designed to measure the internal resistance, voltage, and temperature of lead-acid, nickel-cadmium, lithium-ion, and nickel-metal hydride batteries; compact, alkaline, and acid (lead) batteries.
The AC internal resistance measurement is performed using a four-wire method and includes a compensation function (zeroing the readings) for the test lead resistance to eliminate the influence of test lead resistance on the measurement result.
The tester enables simultaneous measurement and reading of internal resistance, voltage, current, and temperature.
The measurement results can be compared with the minimum and maximum permissible limits for internal resistance and voltage programmed in the comparator, allowing for a quick assessment of the condition of the tested battery (good, relatively good, or poor). Based on measurements and data specified for the comparator, the device also calculates the battery charge status. Up to 99 sets of comparator data can be stored in the tester's memory.
The tester also measures DC currents when used with the included DC clamp adapter. This allows for measuring battery charge and discharge current, and internal algorithms allow for determining the remaining battery capacity.
The tester can store 999 sets of data in memory during manual or automatic recording, and up to 6,000 sets of data using continuous recording (logging). This data can be transferred to a PC.
The averaging function, with a choice of 4, 8, or 16 measurements for averaging, can be very helpful. The TES-33 is also equipped with a real-time clock (DD:HH:MM:SS).
The tester can be used with a thermal printer.

Device Features

• Internal resistance measurement 4mΩ ~ 400Ω (max resolution 1µΩ)
• DC voltage measurement 6V~60V with max resolution 1mV
• DC current measurement up to 600A (0.6A sensitivity)
• Temperature measurement -20°C~+60°C with 0.1°C resolution
• Internal resistance measurements using the 4-wire
• Calculation of the remaining battery capacity based on the charge and discharge current measurement
• Zero resetting (zero compensation)
• HOLD and AUTO-HOLD functions (stable measurement)
• COMPARATOR: memory for 99 sets of LO and HI values ​​for internal resistance
and DC voltage, LCD display of PASS (good), WARNING (relatively good), and BAD (bad)
• Audible signal for warnings and WARNING and BAD results
• Manual or automatic recording of 999 data sets
• Continuous recording (logging) of 6000 data sets
• Optical RS 232 interface for PC connection
• Selectable intervals from 1 s to 255s, automatic and continuous recording
• Averaging function (none, 4, 8, or 16 measurements to average)
• "OL" - overflow indication
• "—" - measurement error indication
• Automatic power-off
• Real-time clock

Display	Multifunction LCD
Sampling	1.3 times/s (simultaneous measurement of resistance, voltage, current, and temperature)
Operating Environment	0°C~40°C, Relative Humidity
Storage	-10°C~50°C, <80% relative humidity (non-condensing)
Power supply	9V DC: 6 x 1.5V LR06 batteries (tester) 9V DC: 1 x 9V 6F22 battery (supplement)
Max. current consumption	1.0VA
Continuous operation time	approx. 5.5 hours
Max. operating altitude	below 2000m above sea level.
Dimensions	94x49x198mm (tester) [WxDxH] 69x31x193mm (attachment) [WxDxH]
Weight	530g (tester), 240g (attachment) - masses with battery.
Accessories	Measuring leads with alligator clips and temperature sensor, measuring leads with probes Test probes, 3092CP DC clamp adapter, zeroing board, user manual, batteries: 6 1.6V LR 06, 1 9V 6F22, AC power supply, RS 232 optical cable, software on CD. td> tbody> table> ...	Battery Capacity	0~1200Ah
		Internal Resistance Accuracy Test Current Frequency	4.000m/40.00m/400.0m/4.000/40.00/400.0Ω 4mO: ±(3%rdg ±20dg); pos. ±(0.8%rdg ±6dg) 1kHz±30Hz
		DC Voltage	6.000/60.00V ±(0.1%rdg) ±6°C)
		Temperature	-20.0°C~+60.0°C;±1.0°C
		DC Current *	600.0A; ±(2.0%rdg+2°C)
		Open Circuit Voltage	5V DC max (at input sockets)
* Measured with the supplied clamp adapter