| 参数 | 价值 |
|---|---|
| 产品(自供电计时器) | H7ET-NV_-_/H7ET-NV_-_H |
| 显示屏(自供电计时器) | 7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm) |
| 附件(自供电计时器) | Waterproof packing, flush mounting bracket, time unit labels |
| 表壳颜色(自供电计时器) | Light grey or black (-B models) |
| 复位输入(自供电计时器) | No voltage inputMaximum short-circuit impedance:10 kΩ max.Short-circuit residual voltage: 0.5 V max.Minimum open impedance: 750 kΩ min. |
| 定时器输入(自供电计时器) | High (logic) level: 4.5 to 30 VDCLow (logic) level: 0 to 2 VDC(Input impedance: Approx. 4.7 kΩ) |
| 复位系统(自供电计时器) | External reset and manual reset: Minimum signal width of 20 ms |
| 时间精度(自供电计时器) | ±100 ppm (25°C) |
| 工作模式(自供电计时器) | Accumulating |
| 供电电压(自供电计时器) | Backlight model: 24 VDC (0.3 W max.) (for backlight)No-backlight model: Not required(powered by built-in battery) |
| 浅灰色机身(自供电计时器) | Black body |
| 安装方式(自供电计时器) | Flush mounting |
| 无电压输入(自供电计时器) | 7-segment LCD |
| 数字位数(自供电计时器) | 7 |
| 环境温度(自供电计时器) | Operating: −10 to 55°C (with no condensation or icing), storage: −25 to 65°C (with no condensation or icing) |
| 最小脉冲宽度(自供电计时器) | 1 s |
| 防护等级(自供电计时器) | Front-panel: IP66, NEMA4 with waterproof packing, terminal block: IP20 |
| 外部连接(自供电计时器) | Screw terminals |
| 尺寸(高×宽×深)(自供电计时器) | 24×48×55.5 |
| 电池寿命(参考值)(自供电计时器) | 10 years min. with continuous input at 25°C (lithium battery) |
| AC/DC多电压输入(自供电计时器) | 7-segment LCD |
| 7段式液晶显示屏,带背光(自供电计时器) | H7ET-NV-H |
| PNP/NPN通用直流电压输入(自供电计时器) | 7-segment LCD |
| 时间范围 999999.9 小时 <-> 3999 天 23.9 小时(可切换)(自供电计时器) | Time range 999h59m59s <-> 9999h59.9m |
技术规格和性能数据
安装和操作指南