Simple Power Logger ZN-CTX/CTS/CTM

Caution
- Some products are scheduled to be discontinued from October 2021. Depend on stock status, the end time will be changed. Please check the quotation and order screen for details.
Product Description
[Features]
· Immediate checks can be made on-site whenever necessary.
· Simple power logger enables intelligent checks of various circuits from device power to switchboard power.
· Remote monitoring and setting from a PC, PLC, etc. is possible with the built-in LAN port.
· AC adapter for logging over a long period.
· SD card slot for easy data collection.
· Alarm output alerts of errors. Measurement range 0.03 to 400A (CT5 type).
Simplified Power Logger Specifications

Simplified Power Logger appearance

Simplified Power Logger external dimension diagram 1; unit: mm

Simplified Power Logger external dimension diagram 2; unit: mm

Simplified Power Logger external dimension diagram 3; unit: mm

Simplified Power Logger screw hook‑holes cutting dimension diagram; unit: mm

Simplified Power Logger mounting holes dimension diagram; unit: mm
| Item | Format | |
|---|---|---|
| Model ZN-CTX21 | Model ZN-CTX21-A | |
| Phase-Wire Type | For standard-type CTs: single-phase 2-wire / 3-phase 3-wire (treated as balanced 3-phase) For split-type CTs: single-phase 2-wire / single-phase 3-wire / 3-phase 3-wire / 3-phase 4-wire | |
| Display | 7-segment LCD with 5 digits on 2 rows, and supplemental information indicators | |
| Recording Interval | 1 s, 2 s, 5 s, 10 s, 20 s, 30 s and 1 min *1 | |
| Conversion Function | Instantaneous power and cumulative power consumption *2 | |
| Measurement Operation Modes | Normal mode, sleep mode *3 and high-speed logging mode *4 | |
| Recording Mode | Continue *5, ring *6 | |
| External Output | Alarm output (photocoupler output) *7 | |
| Storage Device (Internal) | Internal memory: Approx. 6,500 data items (1 data item: 70 bytes or less (when number of channels is 1)) | |
| Storage Device (External) | SD card (to save measured values and to save/read-out set values) / Recommended SD card: HMC-SD291 model (manufactured by OMRON Corporation) *8 | |
| Power Supply | DC Input: 24 V DC ±10%; AC Adapter: 100 to 240 V AC / 50 to 60 Hz Battery: 2 AAA batteries *9 | |
| Current Consumption | 80 mA or lower (using an AC adapter) | |
| Battery Life *10 | Approx. 1 week *11 | |
| Operating Temperature Range | Battery powered: -10 to +60°C (no condensation or freezing) Using an AC adapter: 0 to +40°C (no condensation or freezing) | |
| Operating Humidity Range | 20 to 85% RH (no condensation or freezing) | |
| Storage Temperature And Humidity Range | -15°C to +60°C, 20 to 85% RH (no condensation or freezing) | |
| Insulation Resistance | 20 MΩ (at 500 V DC Mega) | |
| Dielectric Withstand Voltage | 1,000 V AC, 50/60 Hz for 1 min: between case and input/output terminal | |
| Vibration (Resistance) | With mounting screws: 10 to 150 Hz, with double amplitude of 0.7 mm, acceleration of 50 m/s2 for 80 min each in X, Y and Z directions With mounting magnets: 10 to 55 Hz, with double amplitude of 0.3 mm, acceleration of 20 m/s2 for 50 min each in X, Y and Z directions | |
| Shock (Resistance) | 150 m/s2 3 times each in 6 directions (up/down, left/right and forward/backward) *12 | |
| Material | ABS | |
| Degree Of Protection | IP30 | |
| Mounting Method | Magnet/screw/screw-hook mounting | |
| Mass (packaged) | Approx. 500 g | |
| Accessory 1 | Instruction manual, start-up guide, mounting magnets *13 and alarm output connector *14 | |
| Accessory 2 | AC adapter *15 | DC cable (straight type), ferrite core |
- *1 In high-speed logging mode, data is recorded in 83 ms at 60 Hz and in 100 ms at 50 Hz.
- *2 Instantaneous power and cumulative power consumption are calculated using the measured current and set voltage/power factor. Make sure to correctly set the number of channels used, applicable circuit, CT type, frequency, voltage and power factor.
- *3 In sleep mode, the display turns OFF after 10 seconds with no operation, and will turn ON with button operation. LAN cannot be used when sleep mode is specified.
- *4 LAN cannot be used when high-speed logging mode is selected.
- *5 Automatically writes data to the SD card upon reaching the upper limit of the internal memory, and continues recording up to the upper capacity limit of the SD card. If the SD card is not recognized or write protection is enabled, recording will stop when the upper limit of the internal memory is reached. (Data can be output to the SD card by pressing the button after inserting the SD card.)
- *6 This mode always records the latest measured values for the upper limit of the internal memory. (When the upper limit of the internal memory is exceeded, data items will be overwritten beginning with the oldest data item.)
- *7 An alarm sounds when the cumulative power upper limit set in the threshold setting mode is exceeded. Alarm output is not available while in sleep mode.
- *8 If using an SD card from another manufacturer (compatible with SD/SDHC card standards), data integrity cannot be guaranteed, as, depending on the SD card, there may be cases in which the card is temporarily able to read and write data but cannot be recognized correctly during use. Please use the recommended SD cards with this product.
- *9 Nickel‑metal‑hydride batteries and alkaline batteries can be used. Manganese batteries cannot be used.
- *10 Battery life may vary depending on the measurement environment, recording interval, measurement mode and battery type/performance.
- *11 Conditions: 2 AAA nickel‑metal‑hydride batteries; sleep mode; continue mode; 1‑s recording intervals; SD card use (HMC-SD291); ambient temperature of 23°C; auto range switching OFF; alarm output not in use.
- *12 If using the mounting magnets, install the product in a location in which it will not be subject to impact.
- *13 Mounting magnets are shipped already installed on the product by factory default.
- *14 The included connector is Model XW4B-02B1-H1.
- *15 Please make sure to use the AC adapter included with the product.
Warning
For safety purposes, this product cannot be used in applications for direct or indirect human-body detection.
Do not use this product as a detection device for human safety.
- *Please refer to the catalog for specifications not listed above.